Merge pull request #7458 from jamtur01/cg

Update CONTRIBUTING.md

CONTRIBUTING.md

@@ -11,6 +11,7 @@ feels wrong or incomplete.
 * [Reporting Issues](#reporting-issues)
 * [Build Environment](#build-environment)
 * [Contribution Guidelines](#contribution-guidelines)
+* [Community Guidelines](#docker-community-guidelines)
 
 ## Security Reports