Add link to handbook https://about.gitlab.com/handbook/social-media/

social-media.md

 # Social media content plan
+https://about.gitlab.com/handbook/social-media/ 
+
 ### Approach
 -   Friendly, conversational with community. 
@@ -27,4 +29,4 @@
 - Someone mentions @gitlab with a complaint about an outage
     - Handover to @GitLabStatus, who will respond
 - Someone mentions @gitlab with a feature request
-    - Direct them to contribute an issue or vote on feature
+    - Direct them to contribute an issue or vote on feature
\ No newline at end of file