fix typo

Author: mairaw

docs/docfx.json

@@ -47,12 +47,12 @@
       "author": {
         "standard-library/**/**.md": "corob-msft"
       },
-      "md.author": {
+      "ms.author": {
         "standard-library/**/**.md": "corob"
       }      
     },
     "template": [],
     "xref": ["msdn.4.5.2.zip", "namespaces.4.5.2.zip", "vs.110.zip", "vs.140.zip", "office15.zip"],
     "dest": "vcppdocs"
   }
-}
+}