Fix readme for fix_object_association_merger_node_name and add diff patch

Ching-Hao Liurequested to merge
fix_anonymous_node_names into main

What does this MR do?

Fix readme for fix_object_association_merger_node_name and add diff patch.

Related issues

None.

Developer checklist

  • The MR is for a single purpose.
  • The MR is verified and it works as expected.
  • Conforms to coding sytle

Reviewer checklist

  • The MR matches what the description says. No more, no less.
  • No logic error.
  • The MR is double verified.

Merge request reports