[predefined-counter-styles] new commits pushed by r12a

The following commits were just pushed by r12a to 
https://github.com/w3c/predefined-counter-styles:

* Update CONTRIBUTING.md
  by r12a
https://github.com/w3c/predefined-counter-styles/commit/6a5bd89cc03e1721bc2c2e8149c5f5a2cc0743fd

Received on Thursday, 16 February 2017 13:22:11 UTC