Update CONTRIBUTING.md

CONTRIBUTING.md

@@ -37,12 +37,15 @@ or a factual error.
     you can submit a pull request (PR).
     Instructions for doing this are [included below](#using-gitlab).
 
-## Where to Contribute - Needs changes
+## Where to Contribute
 
-1.  All documentation content can be found within the `content` folder. Subdirectories indicate menu items,
+1.  Checking for outstanding [issues](issues) is a quick way to identify contribution areas. Additionally,
+    review an comments on existing merge requests are welcome.
+
+2.  All documentation content can be found within the `content` folder. Subdirectories indicate menu items,
     with the top level document called `_index.md` within each subdirectory.
 
-Please do not submit modifications to theme or CSS items, `_header` or `_footer` files unless they 
+Note: please do not submit modifications to theme or CSS items, `_header` or `_footer` files unless they 
 adhere to [UNL style guidelines](https://docs.gitlab.com/ee/user/project/issues/managing_issues.html).
 
 ## What to Contribute