docs: Moving library docs out of /tools/ am: 7877f69ddd am: 6bbce8db4f
am: 4290ad19e2

* commit '4290ad19e2b96887b88a08e8e39629b34d4d4117':
  docs: Moving library docs out of /tools/

Change-Id: I3f42ace3cce49c0d66cc51607c6b7bf182a445c2