Update docs/MAINTAINING.md

Author: jsjoeio

docs/MAINTAINING.md

@@ -76,4 +76,4 @@ If you're the current release manager, follow these steps:
 
 1. Create a [release issue](../.github/ISSUE_TEMPLATE/release.md)
 2. Fill out checklist
-3. After their release is cut, they close their release template and their release milestone
+3. After release is published, close release milestone