docs: update CONTRIBUTING.md

CONTRIBUTING.md

@@ -34,10 +34,10 @@ To setup a local development environment we recommend reading [Building Grafana
 ### Pull requests with new features
 ### Pull requests with new features
 Commits should be as small as possible, while ensuring that each commit is correct independently (i.e., each commit should compile and pass tests).
 Commits should be as small as possible, while ensuring that each commit is correct independently (i.e., each commit should compile and pass tests).
 
 
-Make sure to include `closes #<issue>` or `fixes #<issue>` in the pull request description.
+Make sure to include `Closes #<issue number>` or `Fixes #<issue number>` in the pull request description.
 
 
 ### Pull requests with bug fixes
 ### Pull requests with bug fixes
-Please make all changes in one commit if possible. Include `closes #12345` in bottom of the commit message.
+Please make all changes in one commit if possible. Include `Closes #<issue number>` in bottom of the commit message.
 A commit message for a bug fix should look something like this.
 A commit message for a bug fix should look something like this.
 
 
 ```
 ```
@@ -48,7 +48,7 @@ provsioners each provisioner overwrite each other.
 filling up dashboard_versions quite fast if using
 filling up dashboard_versions quite fast if using
 default settings.
 default settings.
 
 
-closes #12864
+Closes #12864
 ```
 ```
 
 
 If the pull request needs changes before its merged the new commits should be rebased into one commit before its merged.
 If the pull request needs changes before its merged the new commits should be rebased into one commit before its merged.