change to new manager (#5649)

Author: TylerMSFT

docs/docfx.json

@@ -40,7 +40,7 @@
       "breadcrumb_path": "~/_breadcrumb/toc.yml",
       "uhfHeaderId": "MSDocsHeader-CPP",
       "ROBOTS": "INDEX,FOLLOW",
-      "manager": "markl",
+      "manager": "coxford",
       "ms.date": "11/16/2016",
       "ms.topic": "conceptual",
       "audience": "developer",

docs/get-started/index.yml

@@ -11,7 +11,7 @@ metadata:
   ms.date: 12/06/2021
   author: tylermsft
   ms.author: twhitney 
-  manager: markl
+  manager: coxford
   ms.service: visual-cpp
   dev_langs:
     - C++