Doc change: miscellaneous tag optimizations and edits.

Change-Id: I9da06cdf950894b32eedb0b63b5b7a9eb2d52003
diff --git a/docs/html/jd_collections.js b/docs/html/jd_collections.js
index cac93afc..2505746 100644
--- a/docs/html/jd_collections.js
+++ b/docs/html/jd_collections.js
@@ -687,7 +687,8 @@
     "resources": [
       "https://developers.google.com/app-indexing/",
       "https://developers.google.com/app-indexing/webmasters/details",
-      "distribute/engage/deep-linking.html"
+      "distribute/engage/deep-linking.html",
+      "training/app-indexing/index.html"
     ]
   },
   "distribute/users/otas": {
@@ -953,7 +954,8 @@
     "resources": [
       "distribute/engage/intents.html",
       "distribute/engage/deep-linking.html",
-      "distribute/users/appindexing.html"
+      "distribute/users/appindexing.html",
+      "training/app-indexing/index.html"
     ]
   },
   "distribute/engage/intents": {