Merge "Docs: Adds new Battery Historian guide to Performance and Power...
Merge "Docs: Adds new Battery Historian guide to Performance and Power section." into nyc-dev am: 0d9704bf am: e91b3932 am: 76822240 am: 482a13c2
am: d5a3b852
Change-Id: Iaea7ac0fa6e2bbaa369a133289edb99abe2174c8