From dae9dbf5e7657bd1506f164817c2427a27f366c3 Mon Sep 17 00:00:00 2001
From: Oleksii Lubynets <O.Lubynets@gsi.de>
Date: Fri, 13 Jun 2025 19:19:46 +0200
Subject: [PATCH 01/12] runMassFitter: add main() function and missing header

---
 PWGHF/D2H/Macros/runMassFitter.C | 22 ++++++++++++++++++----
 1 file changed, 18 insertions(+), 4 deletions(-)

diff --git a/PWGHF/D2H/Macros/runMassFitter.C b/PWGHF/D2H/Macros/runMassFitter.C
index 637171248cc..7a1f6f02366 100644
--- a/PWGHF/D2H/Macros/runMassFitter.C
+++ b/PWGHF/D2H/Macros/runMassFitter.C
@@ -22,6 +22,11 @@
 #include "HFInvMassFitter.h"
 
 // if .h file not found, please include your local rapidjson/document.h and rapidjson/filereadstream.h here
+#include <TCanvas.h>
+#include <TDatabasePDG.h>
+#include <TFile.h>
+#include <TH2F.h>
+
 #include <rapidjson/document.h>
 #include <rapidjson/filereadstream.h>
 
@@ -30,10 +35,6 @@
 #include <string> // std::string
 #include <vector> // std::vector
 
-#include <TDatabasePDG.h>
-#include <TFile.h>
-#include <TH2F.h>
-
 #endif
 
 using namespace rapidjson;
@@ -672,3 +673,16 @@ void divideCanvas(TCanvas* canvas, int nSliceVarBins)
     }
   }
 }
+
+int main(int argc, char* argv[])
+{
+  if (argc < 2) {
+    throw std::runtime_error("Not enough arguments. Please use\n./runMassFitter configFileName");
+  }
+
+  const std::string configFileName = argv[1];
+
+  runMassFitter(configFileName);
+
+  return 0;
+}

From 17c685167f2fcc5045f649d5231afa5626b171a5 Mon Sep 17 00:00:00 2001
From: Oleksii Lubynets <O.Lubynets@gsi.de>
Date: Fri, 13 Jun 2025 19:26:50 +0200
Subject: [PATCH 02/12] linter fix: avoid magic number

---
 PWGHF/D2H/Macros/runMassFitter.C | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/PWGHF/D2H/Macros/runMassFitter.C b/PWGHF/D2H/Macros/runMassFitter.C
index 7a1f6f02366..1ca56a0468d 100644
--- a/PWGHF/D2H/Macros/runMassFitter.C
+++ b/PWGHF/D2H/Macros/runMassFitter.C
@@ -676,7 +676,7 @@ void divideCanvas(TCanvas* canvas, int nSliceVarBins)
 
 int main(int argc, char* argv[])
 {
-  if (argc < 2) {
+  if (argc == 1) {
     throw std::runtime_error("Not enough arguments. Please use\n./runMassFitter configFileName");
   }
 

From 7b168866dec8cb42fcac58149408965ffb66bef0 Mon Sep 17 00:00:00 2001
From: Oleksii Lubynets <O.Lubynets@gsi.de>
Date: Tue, 17 Jun 2025 11:09:14 +0200
Subject: [PATCH 03/12] provide CMakeLists for HFInvMassFitter

---
 PWGHF/D2H/Macros/CMakeLists.txt           | 23 +++++++++++++++++++++++
 PWGHF/D2H/Macros/HFInvMassFitterLinkDef.h | 22 ++++++++++++++++++++++
 2 files changed, 45 insertions(+)
 create mode 100644 PWGHF/D2H/Macros/CMakeLists.txt
 create mode 100644 PWGHF/D2H/Macros/HFInvMassFitterLinkDef.h

diff --git a/PWGHF/D2H/Macros/CMakeLists.txt b/PWGHF/D2H/Macros/CMakeLists.txt
new file mode 100644
index 00000000000..5a74cec1768
--- /dev/null
+++ b/PWGHF/D2H/Macros/CMakeLists.txt
@@ -0,0 +1,23 @@
+cmake_minimum_required(VERSION 3.10)
+
+project(HFInvMassFitter)
+
+set(HFFITTER_RAPIDJSON_INCLUDE_DIRS "" CACHE STRING "Location of rapidjson include directories")
+
+find_package(ROOT REQUIRED COMPONENTS RooFit RooFitCore)
+
+include_directories(${ROOT_INCLUDE_DIRS} ${CMAKE_SOURCE_DIR} ${HFFITTER_RAPIDJSON_INCLUDE_DIRS})
+
+set(SOURCES
+  HFInvMassFitter.cxx
+  runMassFitter.C
+)
+
+add_executable(runMassFitter ${SOURCES} "HFInvMassFitter.h")
+
+ROOT_GENERATE_DICTIONARY(G__HFInvMassFitter
+  HFInvMassFitter.h LINKDEF HFInvMassFitterLinkDef.h
+  MODULE runMassFitter
+)
+
+target_link_libraries(runMassFitter PRIVATE ${ROOT_LIBRARIES} ROOT::EG ROOT::RooFit ROOT::RooFitCore)
diff --git a/PWGHF/D2H/Macros/HFInvMassFitterLinkDef.h b/PWGHF/D2H/Macros/HFInvMassFitterLinkDef.h
new file mode 100644
index 00000000000..2ae7a0f13fe
--- /dev/null
+++ b/PWGHF/D2H/Macros/HFInvMassFitterLinkDef.h
@@ -0,0 +1,22 @@
+// Copyright 2019-2020 CERN and copyright holders of ALICE O2.
+// See https://alice-o2.web.cern.ch/copyright for details of the copyright holders.
+// All rights not expressly granted are reserved.
+//
+// This software is distributed under the terms of the GNU General Public
+// License v3 (GPL Version 3), copied verbatim in the file "COPYING".
+//
+// In applying this license CERN does not waive the privileges and immunities
+// granted to it by virtue of its status as an Intergovernmental Organization
+// or submit itself to any jurisdiction.
+
+#ifndef PWGHF_D2H_MACROS_HFINVMASSFITTERLINKDEF_H_
+#define PWGHF_D2H_MACROS_HFINVMASSFITTERLINKDEF_H_
+
+#ifdef __CINT__
+#pragma link off all globals;
+#pragma link off all classes;
+#pragma link off all functions;
+#pragma link C++ class HFInvMassFitter + ;
+#endif
+
+#endif // PWGHF_D2H_MACROS_HFINVMASSFITTERLINKDEF_H_

From 5a48d6d9d9e813503843faa1b4cfff0daaafc0b1 Mon Sep 17 00:00:00 2001
From: Oleksii Lubynets <O.Lubynets@gsi.de>
Date: Tue, 17 Jun 2025 11:31:07 +0200
Subject: [PATCH 04/12] init README - describe compilation from the command
 line

---
 PWGHF/D2H/Macros/README.md | 9 +++++++++
 1 file changed, 9 insertions(+)
 create mode 100644 PWGHF/D2H/Macros/README.md

diff --git a/PWGHF/D2H/Macros/README.md b/PWGHF/D2H/Macros/README.md
new file mode 100644
index 00000000000..67822c98be5
--- /dev/null
+++ b/PWGHF/D2H/Macros/README.md
@@ -0,0 +1,9 @@
+
+Step 1: Generate ROOT dictionary:
+rootcling -f G__HFInvMassFitter.cxx -c ../HFInvMassFitter.h ../HFInvMassFitterLinkDef.h
+
+Step 2: Compile source code:
+g++ -fPIC -I$(root-config --incdir) -I path-to-json-include -c ../HFInvMassFitter.cxx ../runMassFitter.C G__HFInvMassFitter.cxx
+
+Step 3: Link the executable:
+g++ -o runMassFitter HFInvMassFitter.o runMassFitter.o G__HFInvMassFitter.o $(root-config --libs)  -lRooFit -lRooFitCore -lEG

From d8be2d6cc7aaeeb15f3666d9a34fca09acce9614 Mon Sep 17 00:00:00 2001
From: Oleksii Lubynets <O.Lubynets@gsi.de>
Date: Wed, 18 Jun 2025 13:56:25 +0200
Subject: [PATCH 05/12] describe compilation as Root macro

---
 PWGHF/D2H/Macros/README.md | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/PWGHF/D2H/Macros/README.md b/PWGHF/D2H/Macros/README.md
index 67822c98be5..a0ad4733108 100644
--- a/PWGHF/D2H/Macros/README.md
+++ b/PWGHF/D2H/Macros/README.md
@@ -1,3 +1,7 @@
+export ROOT_INCLUDE_PATH=path-to-json-include // if not in O2Physics environment
+
+root -l -x -b -q "HFInvMassFitter.cxx" "runMassFitter.C(\"config_massfitter.json\")"
+
 
 Step 1: Generate ROOT dictionary:
 rootcling -f G__HFInvMassFitter.cxx -c ../HFInvMassFitter.h ../HFInvMassFitterLinkDef.h

From 1327d91a7b45296ed68516ece87362a3e155fb3c Mon Sep 17 00:00:00 2001
From: Oleksii Lubynets <O.Lubynets@gsi.de>
Date: Fri, 20 Jun 2025 13:04:59 +0200
Subject: [PATCH 06/12] write compilation instruction in Readme; rename
 CMakeLists.txt

---
 ...sts.txt => CMakeLists_HFInvMassFitter.txt} |  0
 PWGHF/D2H/Macros/README.md                    | 50 +++++++++++++++++--
 2 files changed, 46 insertions(+), 4 deletions(-)
 rename PWGHF/D2H/Macros/{CMakeLists.txt => CMakeLists_HFInvMassFitter.txt} (100%)

diff --git a/PWGHF/D2H/Macros/CMakeLists.txt b/PWGHF/D2H/Macros/CMakeLists_HFInvMassFitter.txt
similarity index 100%
rename from PWGHF/D2H/Macros/CMakeLists.txt
rename to PWGHF/D2H/Macros/CMakeLists_HFInvMassFitter.txt
diff --git a/PWGHF/D2H/Macros/README.md b/PWGHF/D2H/Macros/README.md
index a0ad4733108..88efb6fb570 100644
--- a/PWGHF/D2H/Macros/README.md
+++ b/PWGHF/D2H/Macros/README.md
@@ -1,13 +1,55 @@
-export ROOT_INCLUDE_PATH=path-to-json-include // if not in O2Physics environment
+# Invariant mass fitter
+Invariant mass fitter is implemented in the class `HFInvMassFitter` (`HFInvMassFitter.cxx/h` files), and its run is executed via `runMassFitter.C` macro.
+Fitter is configured in `config_massfitter.json`.\
+The fitter is **not** a part of O2Physics source code.
 
+## Dependencies
+1. ROOT
+
+2. RapidJSON. Download the header-only (no compilation needed) RapidJSON library, see the link https://rapidjson.org.
+
+## How to run
+### As a ROOT macro
+The `runMassFitter.C` can be compiled as ROOT macro.
+```
+source path-to-root-install/bin/thisroot.sh
+export ROOT_INCLUDE_PATH=$ROOT_INCLUDE_PATH:path-to-json-include
 root -l -x -b -q "HFInvMassFitter.cxx" "runMassFitter.C(\"config_massfitter.json\")"
+```
+If you have O2Physics compilation and enter into its environment there is no need to set environment variables (skip first two lines above).
 
+### As a CMake project
+It is also possible to compile the fitter as a CMake project or insert it into existing one if any.
+Use the `CMakeLists_HFInvMassFitter.txt` (rename it into `CMakeLists.txt` before usage).\
+Compile the fitter with the following steps:
+```
+mkdir build
+cd build
+source path-to-root-install/bin/thisroot.sh
+cmake -DHFFITTER_RAPIDJSON_INCLUDE_DIRS=path-to-json-include ..
+make
+```
+and run the fitter:
+```
+./runMassFitter ../config_massfitter.json
+```
+### Directly from the terminal
+Compile the fitter with the following steps:
+```
+mkdir build
+cd build
+source path-to-root-install/bin/thisroot.sh
 
-Step 1: Generate ROOT dictionary:
+# Generate ROOT dictionary:
 rootcling -f G__HFInvMassFitter.cxx -c ../HFInvMassFitter.h ../HFInvMassFitterLinkDef.h
 
-Step 2: Compile source code:
+# Compile source code:
 g++ -fPIC -I$(root-config --incdir) -I path-to-json-include -c ../HFInvMassFitter.cxx ../runMassFitter.C G__HFInvMassFitter.cxx
 
-Step 3: Link the executable:
+# Link the executable:
 g++ -o runMassFitter HFInvMassFitter.o runMassFitter.o G__HFInvMassFitter.o $(root-config --libs)  -lRooFit -lRooFitCore -lEG
+```
+and run the fitter:
+```
+./runMassFitter ../config_massfitter.json
+```

From 0c92c7b18a755158e0d38081944782da36d6417a Mon Sep 17 00:00:00 2001
From: Oleksii Lubynets <O.Lubynets@gsi.de>
Date: Fri, 20 Jun 2025 13:10:24 +0200
Subject: [PATCH 07/12] update author list; clang-format

---
 PWGHF/D2H/Macros/HFInvMassFitter.cxx | 7 ++++---
 PWGHF/D2H/Macros/HFInvMassFitter.h   | 7 ++++---
 PWGHF/D2H/Macros/runMassFitter.C     | 1 +
 3 files changed, 9 insertions(+), 6 deletions(-)

diff --git a/PWGHF/D2H/Macros/HFInvMassFitter.cxx b/PWGHF/D2H/Macros/HFInvMassFitter.cxx
index 255de80a079..ba14190be6a 100644
--- a/PWGHF/D2H/Macros/HFInvMassFitter.cxx
+++ b/PWGHF/D2H/Macros/HFInvMassFitter.cxx
@@ -16,6 +16,7 @@
 /// \author Mingyu Zhang <mingyu.zang@cern.ch>
 /// \author Xinye Peng  <xinye.peng@cern.ch>
 /// \author Biao Zhang <biao.zhang@cern.ch>
+/// \author Oleksii Lubynets <oleksii.lubynets@cern.ch>
 
 #include "HFInvMassFitter.h"
 
@@ -33,9 +34,6 @@
 #include <RooPolynomial.h>
 #include <RooRealVar.h>
 #include <RooWorkspace.h>
-
-#include <Rtypes.h>
-#include <RtypesCore.h>
 #include <TColor.h>
 #include <TDatabasePDG.h>
 #include <TLine.h>
@@ -45,6 +43,9 @@
 #include <TStyle.h>
 #include <TVirtualPad.h>
 
+#include <Rtypes.h>
+#include <RtypesCore.h>
+
 #include <array>
 #include <cmath>
 #include <cstring>
diff --git a/PWGHF/D2H/Macros/HFInvMassFitter.h b/PWGHF/D2H/Macros/HFInvMassFitter.h
index 8a236412a13..521b83bd465 100644
--- a/PWGHF/D2H/Macros/HFInvMassFitter.h
+++ b/PWGHF/D2H/Macros/HFInvMassFitter.h
@@ -16,6 +16,7 @@
 /// \author Mingyu Zhang <mingyu.zang@cern.ch>
 /// \author Xinye Peng  <xinye.peng@cern.ch>
 /// \author Biao Zhang <biao.zhang@cern.ch>
+/// \author Oleksii Lubynets <oleksii.lubynets@cern.ch>
 
 #ifndef PWGHF_D2H_MACROS_HFINVMASSFITTER_H_
 #define PWGHF_D2H_MACROS_HFINVMASSFITTER_H_
@@ -23,14 +24,14 @@
 #include <RooPlot.h>
 #include <RooRealVar.h>
 #include <RooWorkspace.h>
-#include <Rtypes.h>
-#include <RtypesCore.h>
-
 #include <TF1.h>
 #include <TH1.h>
 #include <TNamed.h>
 #include <TVirtualPad.h>
 
+#include <Rtypes.h>
+#include <RtypesCore.h>
+
 #include <cstdio>
 
 class HFInvMassFitter : public TNamed
diff --git a/PWGHF/D2H/Macros/runMassFitter.C b/PWGHF/D2H/Macros/runMassFitter.C
index 1ca56a0468d..1181c13b814 100644
--- a/PWGHF/D2H/Macros/runMassFitter.C
+++ b/PWGHF/D2H/Macros/runMassFitter.C
@@ -16,6 +16,7 @@
 /// \author Mingyu Zhang <mingyu.zang@cern.ch>
 /// \author Xinye Peng  <xinye.peng@cern.ch>
 /// \author Biao Zhang <biao.zhang@cern.ch>
+/// \author Oleksii Lubynets <oleksii.lubynets@cern.ch>
 
 #if !defined(__CINT__) || defined(__CLING__)
 

From 6ee04fffa7f0f902e8478c5c7c322316f55bf43a Mon Sep 17 00:00:00 2001
From: ALICE Action Bot <alibuild@cern.ch>
Date: Fri, 20 Jun 2025 11:15:28 +0000
Subject: [PATCH 08/12] MegaLinter fixes

---
 PWGHF/D2H/Macros/README.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/PWGHF/D2H/Macros/README.md b/PWGHF/D2H/Macros/README.md
index 88efb6fb570..1f2d0501616 100644
--- a/PWGHF/D2H/Macros/README.md
+++ b/PWGHF/D2H/Macros/README.md
@@ -6,7 +6,7 @@ The fitter is **not** a part of O2Physics source code.
 ## Dependencies
 1. ROOT
 
-2. RapidJSON. Download the header-only (no compilation needed) RapidJSON library, see the link https://rapidjson.org.
+2. RapidJSON. Download the header-only (no compilation needed) RapidJSON library, see the link <https://rapidjson.org>.
 
 ## How to run
 ### As a ROOT macro

From 074758faf5129534f30085f4307389c4ac59e11f Mon Sep 17 00:00:00 2001
From: Oleksii Lubynets <O.Lubynets@gsi.de>
Date: Fri, 20 Jun 2025 13:24:09 +0200
Subject: [PATCH 09/12] address O2 linter error

---
 PWGHF/D2H/Macros/HFInvMassFitterLinkDef.h | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/PWGHF/D2H/Macros/HFInvMassFitterLinkDef.h b/PWGHF/D2H/Macros/HFInvMassFitterLinkDef.h
index 2ae7a0f13fe..cc755de478f 100644
--- a/PWGHF/D2H/Macros/HFInvMassFitterLinkDef.h
+++ b/PWGHF/D2H/Macros/HFInvMassFitterLinkDef.h
@@ -9,6 +9,15 @@
 // granted to it by virtue of its status as an Intergovernmental Organization
 // or submit itself to any jurisdiction.
 
+/// \file HFInvMassFitterLinkDef.h
+/// \brief HFInvMassFitter dictionary definition file
+///
+/// \author Zhen Zhang <zhenz@cern.ch>
+/// \author Mingyu Zhang <mingyu.zang@cern.ch>
+/// \author Xinye Peng  <xinye.peng@cern.ch>
+/// \author Biao Zhang <biao.zhang@cern.ch>
+/// \author Oleksii Lubynets <oleksii.lubynets@cern.ch>
+
 #ifndef PWGHF_D2H_MACROS_HFINVMASSFITTERLINKDEF_H_
 #define PWGHF_D2H_MACROS_HFINVMASSFITTERLINKDEF_H_
 

From 9041445c0074d9686daa7077ee616ac0e38baccc Mon Sep 17 00:00:00 2001
From: Oleksii Lubynets <O.Lubynets@gsi.de>
Date: Sat, 21 Jun 2025 07:49:08 +0200
Subject: [PATCH 10/12] clarify paths in readme

---
 PWGHF/D2H/Macros/README.md | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/PWGHF/D2H/Macros/README.md b/PWGHF/D2H/Macros/README.md
index 1f2d0501616..a43696c94cf 100644
--- a/PWGHF/D2H/Macros/README.md
+++ b/PWGHF/D2H/Macros/README.md
@@ -5,28 +5,31 @@ The fitter is **not** a part of O2Physics source code.
 
 ## Dependencies
 1. ROOT
-
 2. RapidJSON. Download the header-only (no compilation needed) RapidJSON library, see the link <https://rapidjson.org>.
 
+If you have O2Physics compilation you do not need to fulfill these dependencies explicitly.
+
 ## How to run
 ### As a ROOT macro
 The `runMassFitter.C` can be compiled as ROOT macro.
 ```
+cd path-to-o2physics-src/PWGHF/D2H/Macros
 source path-to-root-install/bin/thisroot.sh
 export ROOT_INCLUDE_PATH=$ROOT_INCLUDE_PATH:path-to-json-include
 root -l -x -b -q "HFInvMassFitter.cxx" "runMassFitter.C(\"config_massfitter.json\")"
 ```
-If you have O2Physics compilation and enter into its environment there is no need to set environment variables (skip first two lines above).
+If you have O2Physics compilation and enter into its environment there is no need to set environment variables (skip lines 2-3 above).
 
 ### As a CMake project
 It is also possible to compile the fitter as a CMake project or insert it into existing one if any.
 Use the `CMakeLists_HFInvMassFitter.txt` (rename it into `CMakeLists.txt` before usage).\
 Compile the fitter with the following steps:
 ```
+cd path-to-o2physics-src/PWGHF/D2H/Macros
 mkdir build
 cd build
 source path-to-root-install/bin/thisroot.sh
-cmake -DHFFITTER_RAPIDJSON_INCLUDE_DIRS=path-to-json-include ..
+cmake -DHFFITTER_RAPIDJSON_INCLUDE_DIRS=path-to-json-include ../
 make
 ```
 and run the fitter:
@@ -36,6 +39,7 @@ and run the fitter:
 ### Directly from the terminal
 Compile the fitter with the following steps:
 ```
+cd path-to-o2physics-src/PWGHF/D2H/Macros
 mkdir build
 cd build
 source path-to-root-install/bin/thisroot.sh

From 4ea2b03ce4b194446cd3195bc4f8178126ec0a71 Mon Sep 17 00:00:00 2001
From: Oleksii Lubynets <O.Lubynets@gsi.de>
Date: Tue, 24 Jun 2025 23:59:02 +0200
Subject: [PATCH 11/12] add language specification for bash commands in ReadMe

---
 PWGHF/D2H/Macros/README.md | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/PWGHF/D2H/Macros/README.md b/PWGHF/D2H/Macros/README.md
index a43696c94cf..799ef8bac90 100644
--- a/PWGHF/D2H/Macros/README.md
+++ b/PWGHF/D2H/Macros/README.md
@@ -12,7 +12,7 @@ If you have O2Physics compilation you do not need to fulfill these dependencies
 ## How to run
 ### As a ROOT macro
 The `runMassFitter.C` can be compiled as ROOT macro.
-```
+```bash
 cd path-to-o2physics-src/PWGHF/D2H/Macros
 source path-to-root-install/bin/thisroot.sh
 export ROOT_INCLUDE_PATH=$ROOT_INCLUDE_PATH:path-to-json-include
@@ -24,7 +24,7 @@ If you have O2Physics compilation and enter into its environment there is no nee
 It is also possible to compile the fitter as a CMake project or insert it into existing one if any.
 Use the `CMakeLists_HFInvMassFitter.txt` (rename it into `CMakeLists.txt` before usage).\
 Compile the fitter with the following steps:
-```
+```bash
 cd path-to-o2physics-src/PWGHF/D2H/Macros
 mkdir build
 cd build
@@ -33,12 +33,12 @@ cmake -DHFFITTER_RAPIDJSON_INCLUDE_DIRS=path-to-json-include ../
 make
 ```
 and run the fitter:
-```
+```bash
 ./runMassFitter ../config_massfitter.json
 ```
 ### Directly from the terminal
 Compile the fitter with the following steps:
-```
+```bash
 cd path-to-o2physics-src/PWGHF/D2H/Macros
 mkdir build
 cd build
@@ -54,6 +54,6 @@ g++ -fPIC -I$(root-config --incdir) -I path-to-json-include -c ../HFInvMassFitte
 g++ -o runMassFitter HFInvMassFitter.o runMassFitter.o G__HFInvMassFitter.o $(root-config --libs)  -lRooFit -lRooFitCore -lEG
 ```
 and run the fitter:
-```
+```bash
 ./runMassFitter ../config_massfitter.json
 ```

From 0a699811b7a337c7b9e6de5b73ef6474c8eb896a Mon Sep 17 00:00:00 2001
From: Oleksii Lubynets <O.Lubynets@gsi.de>
Date: Thu, 26 Jun 2025 21:14:43 +0200
Subject: [PATCH 12/12] fix wording: invariant-mass

---
 PWGHF/D2H/Macros/README.md | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/PWGHF/D2H/Macros/README.md b/PWGHF/D2H/Macros/README.md
index 799ef8bac90..f65de110419 100644
--- a/PWGHF/D2H/Macros/README.md
+++ b/PWGHF/D2H/Macros/README.md
@@ -1,5 +1,5 @@
-# Invariant mass fitter
-Invariant mass fitter is implemented in the class `HFInvMassFitter` (`HFInvMassFitter.cxx/h` files), and its run is executed via `runMassFitter.C` macro.
+# Invariant-mass fitter
+Invariant-mass fitter is implemented in the class `HFInvMassFitter` (`HFInvMassFitter.cxx/h` files), and its run is executed via `runMassFitter.C` macro.
 Fitter is configured in `config_massfitter.json`.\
 The fitter is **not** a part of O2Physics source code.