Update docfx.json

Adding users to contributors_to_exclude

Author: kimberleybrown

powerapps-docs/docfx.json

@@ -42,7 +42,10 @@
         "marycc",
         "tinaburden",
         "almostdunh",
-        "AshleyWoodruff"
+        "AshleyWoodruff",
+        "kimberleybrown",
+        "nathlaroche",
+        "bishalgoswami"
       ],
       "breadcrumb_path": "breadcrumb/toc.yml",
       "ms.suite": "office",