(teamclairvoyant#133) feat: add doc_md

Author: seunggabi

log-cleanup/airflow-log-cleanup.py

@@ -88,7 +88,9 @@
     template_undefined=jinja2.Undefined
 )
 if hasattr(dag, 'doc_md'):
-    dag.doc_md = __doc__
+    dag.doc_md = """
+    ### [README.md](https://github.com/teamclairvoyant/airflow-maintenance-dags/log-cleanup)
+    """
 if hasattr(dag, 'catchup'):
     dag.catchup = False