Update README.md

Author: zainuvk

README.md

@@ -112,6 +112,8 @@ jobs:
         plsql-file: "sql_files/*.sql"
 ```
 
+Azure PostgreSQL Action for GitHub is supported on 'AzureUSGovernment'.Login to the respective Azure Cloud before running PostgreSQL Action for GitHub using [Azure Login](https://github.com/Azure/login)
+
 # Contributing
 
 This project welcomes contributions and suggestions.  Most contributions require you to agree to a