Update README.md

Co-authored-by: Manuel Spigolon <behemoth89@gmail.com>

README.md

@@ -27,7 +27,7 @@ _Optional_ An arbitrary message that you'd like to comment on the PR after it ge
 
 ### `enable-auto-merge`
 
-_Optional_ If `true`, the PR is marked as auto-merge and will be merged by github when status checks are satisfied. Default to `false`.
+_Optional_ If `true`, the PR is marked as auto-merge and will be [merged by GitHub](https://docs.github.com/en/pull-requests/collaborating-with-pull-requests/incorporating-changes-from-a-pull-request/automatically-merging-a-pull-request) when status checks are satisfied. Default to `false`.
 
 _NOTE_ This feature only works when all of the following conditions are met.