am 0f7cc697: am f420b800: am 47f56dbf: am d56e4eca: am ed2a05bc: Merge "Doc change: minor fixes to support lib lesson." into jb-mr1-dev

* commit '0f7cc697ed55f9b9587633c912b9bd9b8f41db31':
  Doc change: minor fixes to support lib lesson.