Merge pull request #283 from flashcatcloud/docs/seo-indexing-all

docs: enable search indexing for hidden API reference tabs

Author: ysyneu

docs.json

@@ -15,6 +15,7 @@
     "href": "https://flashduty.com/"
   },
   "seo": {
+    "indexing": "all",
     "metatags": {
       "canonical": "https://docs.flashduty.com"
     },