Merge "Adding top category, subcategory and book path detection for go/libraries" into mnc-mr-docs am: 5b005e1ded am: e0b5cb8f29
am: 532e0accaa

* commit '532e0accaa91468550ce0ddc375629618e8873c2':
  Adding top category, subcategory and book path detection for go/libraries

Change-Id: I1264c52ce1a3329ee54565ba14a412144d229647