message: fixed "Contributor Covenant"
diff: @@ -43,8 +43,6 @@ Instances of abusive, harassing, or otherwise unacceptable behavior may be repor
  ## Attribution
  -This Code of Conduct is adapted from the [Contributor Covenant][homepage],
  -version 2.0, available at
  -https://www.contributor-covenant.org/version/2/0/code_of_conduct.html.
  +This Code of Conduct is adapted from the [Contributor Covenant](https://www.contributor-covenant.org/), version 2.0, available at https://www.contributor-covenant.org/version/2/0/code_of_conduct.html.
  For answers to common questions about this code of conduct, see https://www.contributor-covenant.org/faq.
  