[community-group] new commits pushed by kaelig

The following commits were just pushed by kaelig to https://github.com/design-tokens/community-group:

* Update CONTRIBUTING.md
  by Kaelig Deloumeau-Prigent
https://github.com/design-tokens/community-group/commit/cc71d72f54985497fc76428bcc81342052da12d7

Received on Monday, 2 September 2019 23:20:58 UTC