Initialize open publishing repository: https://github.com/Azure/azure-docs-sdk-java of branch master

.openpublishing.publish.config.json

@@ -31,11 +31,13 @@
     }
   ],
   "notification_subscribers": [],
+  "sync_notification_subscribers": [],
   "branches_to_filter": [],
   "git_repository_branch_open_to_public_contributors": "master",
   "skip_source_output_uploading": false,
-  "need_preview_pull_request": false,
+  "need_preview_pull_request": true,
   "enable_incremental_build": false,
+  "contribution_branch_mappings": {},
   "dependent_repositories": [
     {
       "path_to_root": "_themes",
@@ -62,7 +64,9 @@
       "branch_mapping": {}
     }
   ],
+  "branch_target_mapping": {},
   "need_generate_pdf_url_template": false,
+  "targets": {},
   "need_generate_pdf": false,
   "need_generate_intellisense": false,
   "dependent_packages": [
@@ -124,4 +128,4 @@
       }
     }
   ]
-}
+}