Update docfx.json (#387)

Author: daxianji007

docs/docfx.json

@@ -35,6 +35,7 @@
           "**/*.md",
           "**/*.yml"
         ],
+        "group": "office-scripts",
         "src": "docs-ref-autogen",
         "dest": "api/office-scripts",
         "exclude": [
@@ -50,15 +51,6 @@
           "ThirdPartyNotices"
         ]
       },
-      {
-        "files": [
-          "**/*.md",
-          "**/*.yml"
-        ],
-        "group": "office-scripts",
-        "src": "docs-ref-autogen",
-        "dest": "api/office-scripts"
-      },
       {
         "files": [
           "toc.yml"