anchor.diff:  
       Signed-off-by: John Doe <john.doe@nowhere.com>
   ----
  -
  -[[_contribute_documentation]]
  -=== Contributing to Documentation & Tutorials
  -
  -The repository for the CometD documentation is https://github.com/cometd/cometd-documentation,
  -while the repository for the CometD tutorials is https://github.com/cometd/cometd-tutorials.
  -The CometD documentation and tutorials are written in http://asciidoc.org/[AsciiDoc],
  -and built using Maven and the http://asciidoctor.org[AsciiDoctor] Maven Plugin.
  -
  -To contribute fixes or enhancements to the documentation or the tutorials, you can just issue
  -https://help.github.com/articles/using-pull-requests[GitHub pull requests].
  
positive.code: ----
  ====
  
  To contribute code, follow these steps:
  
  * Create an issue at http://bugs.cometd.org.
  * Commit your changes:
  
negative.code: visiting https://github.com/join[this link].
  
  [[_contribute_code]]
  === Contributing Code Fixes, Enhancements and Documentation
  
  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 or documentation, you need to certify the
  http://developercertificate.org/[Developer Certificate of Origin] and sign-off your
  `git` commits using `git commit --signoff`.
  
  