anchor.diff:  ----
   ====
   
  -To contribute code, follow these steps:
  +To contribute code or documentation, follow these steps:
   
   * Create an issue at http://bugs.cometd.org.
   * Commit your changes:
  
positive.code: visiting https://github.com/join[this link].
  
  [[_contribute_code]]
  === Contributing Code Fixes and Enhancements
  
  The CometD project code is hosted at https://github.com/cometd[GitHub CometD Organization].
  The repository for the CometD libraries is https://github.com/cometd/cometd.
  You can build the CometD project yourself by following the instruction in
  <<_build,the build section>>.
  
  In order to contribute code, you need to certify the
  http://developercertificate.org/[Developer Certificate of Origin] and sign-off your
  `git` commits using `git commit --signoff`.
  
  
negative.code: 
      Signed-off-by: John Doe <john.doe@nowhere.com>
  ----
  