Fix heading names and links. Additions to troubleshooting docs.

Change-Id: If8f9097c22e54233676352890f3c5431af9ba098
diff --git a/docs/book.json b/docs/book.json
index 262c854..6c39c52 100644
--- a/docs/book.json
+++ b/docs/book.json
@@ -8,6 +8,7 @@
     "branch": "master"
   },
   "plugins": [
+    "anchorjs",
     "toggle-chapters",
     "versions-select"
   ],