Adds redirect from an old path (#59043)

Author: subatoi

content/discussions/index.md

@@ -12,6 +12,7 @@ redirect_from:
   - /organizations/collaborating-with-your-team
   - /rest/teams/discussion-comments
   - /rest/teams/discussions
+  - /rest/repos/discussions
 featuredLinks:
   startHere:
     - /discussions/collaborating-with-your-community-using-discussions/about-discussions