[api][spark] Add REST permission and data policy management

docs/README.md

@@ -22,7 +22,7 @@ The site will be available at http://localhost:3000/docs/master/.
 ## Build
 
 ```bash
-# Validate the REST Catalog OpenAPI contract
+# Validate the REST OpenAPI contracts
 yarn test:rest-openapi
 
 # Production build

docs/docs/concepts/rest/index.md

@@ -63,4 +63,5 @@ RESTCatalog supports multiple access authentication methods, including the follo
 
 ## REST Open API
 
-See [REST API](./rest-api).
+See [REST Catalog API](./rest-api) for catalog operations and
+[REST Management API](./management-api) for permission management.