Add related link field for more information. (r-labs: #1339)
Merge branch 'dev'

* dev:
  Update test code. (r-labs: #1339)
  Add related link field for more information. (r-labs: #1339)
  Add related link field for more information. (r-labs: #1339)
Update version to 0.1.0, add change log of README.