am cb27bc7d: am 0846a2f5: cherrypick Change-Id: I7033e605213db4b5c73c09c2207bed68a704aa72 docs: update sitemap add new webmaster tools verification file

* commit 'cb27bc7d29685182ad0694ce7830664bcb758203':
  cherrypick Change-Id: I7033e605213db4b5c73c09c2207bed68a704aa72 docs: update sitemap add new webmaster tools verification file