am 15f8a6a7: am 4c53fc7e: am 78b875e7: am edab852f: Merge "docs: update uses-feature doc with USB features, add TOC at the top and revise some other stuff" into honeycomb-mr1

* commit '15f8a6a726658bfb195924bd5d7bb86684a22de0':
  docs: update uses-feature doc with USB features, add TOC at the top and revise some other stuff