Config changes to reflect the default branch from master to main.

Author: mattwojo

.openpublishing.publish.config.json

@@ -23,15 +23,15 @@
   "sync_notification_subscribers": [],
   "branches_to_filter": [],
   "git_repository_url_open_to_public_contributors": "https://github.com/MicrosoftDocs/terminal",
-  "git_repository_branch_open_to_public_contributors": "master",
+  "git_repository_branch_open_to_public_contributors": "main",
   "skip_source_output_uploading": false,
   "need_preview_pull_request": true,
   "contribution_branch_mappings": {},
   "dependent_repositories": [
     {
       "path_to_root": "_themes",
       "url": "https://github.com/Microsoft/templates.docs.msft",
-      "branch": "master",
+      "branch": "main",
       "branch_mapping": {}
     }
   ],
@@ -40,4 +40,4 @@
   "docs_build_engine": {
     "name": "docfx_v3"
   }
-}
+}