update docs

Author: GokceGK

docs/stackit_beta_security-group-rules_create.md

@@ -30,7 +30,7 @@ stackit beta security-group-rules create [flags]
 
 ```
       --description string                The rule description
-      --direction ingress                 The direction of the traffic which the rule should match. Some of the possible values are: ingress, `egress`
+      --direction ingress                 The direction of the traffic which the rule should match. The possible values are: ingress, `egress`
       --ether-type string                 The ethertype which the rule should match
   -h, --help                              Help for "stackit beta security-group-rules create"
       --icmp-parameter-code int           ICMP code. Can be set if the protocol is ICMP

docs/stackit_beta_security-group-rules_list.md

@@ -4,7 +4,7 @@ Lists all security group rules in a security group of a project
 
 ### Synopsis
 
-Lists all security group rules in a security group of a project
+Lists all security group rules in a security group of a project.
 
 ```
 stackit beta security-group-rules list [flags]