maintenance readme t2 config (Azure#13982)

* maintenance readme t2 config

* readme t1 config

Author: RAY-316

specification/maintenance/resource-manager/readme.md

@@ -79,6 +79,7 @@ This is not used by Autorest itself.
 ``` yaml $(swagger-to-sdk)
 swagger-to-sdk:
   - repo: azure-sdk-for-python
+  - repo: azure-sdk-for-python-track2
   - repo: azure-libraries-for-java
   - repo: azure-sdk-for-go
   - repo: azure-sdk-for-node