Improve CONTRIBUTING.md formatting and consistency

CONTRIBUTING.md

@@ -8,40 +8,40 @@ MariaDB Server has a vibrant community contributing in a wide range of areas. Th
 -   [maria-developers mailing list](https://lists.mariadb.org/postorius/lists/developers.lists.mariadb.org/)
 -   [maria-discuss mailing list](https://lists.mariadb.org/postorius/lists/discuss.lists.mariadb.org/)
 -   [maria-docs mailing list](https://lists.mariadb.org/postorius/lists/docs.lists.mariadb.org/)
--   The MariaDB Foundation and MariaDB Corporation have a presence on Reddit, Twitter and Facebook. See the  [social media page](https://mariadb.com/docs/general-resources/community/joining-the-community).
+-   The MariaDB Foundation and MariaDB Corporation have a presence on Reddit, Twitter and Facebook. See the [social media page](https://mariadb.com/docs/general-resources/community/joining-the-community).
 
 ### Help document MariaDB
-----
--   Contribute towards [documenting MariaDB Server](https://mariadb.com/docs/general-resources/about/readme/contributing-documentation)  and its ecosystem by adding new content or improving existing content.
--   [Translate](https://mariadb.com/docs/general-resources/about/readme/contributing-documentation)  existing documentation.
+---
+-   Contribute towards [documenting MariaDB Server](https://mariadb.com/docs/general-resources/about/readme/contributing-documentation) and its ecosystem by adding new content or improving existing content.
+-   [Translate](https://mariadb.com/docs/general-resources/about/readme/contributing-documentation) existing documentation.
 
 ### Help debug and develop MariaDB
------
+---
 -   [Report bugs](https://jira.mariadb.org/)
 -   Test development versions
--   Write code to fix bugs or develop new features (see  [Getting Started for Developers](https://mariadb.org/getting-started-for-developers)).See also [list of beginner friendly tasks](https://jira.mariadb.org/browse/MDEV-15736?jql=resolution%20%3D%20Unresolved%20AND%20labels%20%3D%20beginner-friendly%20ORDER%20BY%20updated%20DESC)
+-   Write code to fix bugs or develop new features (see [Getting Started for Developers](https://mariadb.org/getting-started-for-developers)). See also [list of beginner friendly tasks](https://jira.mariadb.org/browse/MDEV-15736?jql=resolution%20%3D%20Unresolved%20AND%20labels%20%3D%20beginner-friendly%20ORDER%20BY%20updated%20DESC)
 -   Help with code quality control
 -   Participate in packaging for different Linux distributions
 -   Coding standards for the main source code can be found in [CODING_STANDARDS.md](CODING_STANDARDS.md).
 
 ### Sponsor or donate
 ---
-You’re very welcome to support MariaDB Server as an individual, or talk your company into joining the Foundation as a sponsoring member. See the  [Sponsor page](https://mariadb.org/donate/).
+You’re very welcome to support MariaDB Server as an individual, or talk your company into joining the Foundation as a sponsoring member. See the [Sponsor page](https://mariadb.org/donate/).
 
 ### Events, meetups and conferences
 ---
 -   Attend an event
     -   [Events and Conferences page](https://mariadb.org/events/)
-    -   [mariadb.meetup.com](http://mariadb.meetup.com/)
+    -   [mariadb.meetup.com](https://mariadb.meetup.com/)
 
 ### Live QA for beginner contributors
-----
+---
 MariaDB has a dedicated time each week when we answer new contributor questions live on Zulip.
 From 8:00 to 10:00 UTC on Mondays, and 10:00 to 12:00 UTC on Thursdays, anyone can ask any questions they’d like,
 and a live developer will be available to assist.
 New contributors can ask questions any time, but we will provide immediate feedback during that interval.
 
 ### Additional resources
-----
+---
  - [MariaDB Foundation ](https://mariadb.org/)
  - [MariaDB Documentation](https://mariadb.com/docs/)