Update workflow docstring

Signed-off-by: Beat Buesser <[email protected]>

Author: beat-buesser

.github/workflows/dockerhub.yml

@@ -1,7 +1,6 @@
 # This workflow uses actions that are not certified by GitHub.
 # They are provided by a third-party and are governed by
-# separate terms of service, privacy policy, and support
-# documentation.
+# separate terms of service, privacy policy, and support documentation.
 
 # GitHub recommends pinning actions to a commit SHA.
 # To get a newer version, you will need to update the SHA.