Update .openpublishing.publish.config.json

changing contribution branch to master (change exists in master already, merge oddities caused us to just make the change here)

.openpublishing.publish.config.json

@@ -1,7 +1,8 @@
 {
   "build_entry_point": "docs",
   "need_generate_pdf": false,
-  "need_generate_intellisense": false,
+  "need_generate_intellisense": true,
+  "git_repository_branch_open_to_public_contributors": "master",
   "docsets_to_publish": [
     {
       "docset_name": "aspnet-conceptual",
@@ -44,4 +45,4 @@
       "branch_mapping": {}
     }
   ]
-}
+}