Changed contribution rules

Signed-off-by: Andreas Maier <andreas.r.maier@gmx.de>

CODE_OF_CONDUCT.md

@@ -55,9 +55,9 @@ further defined and clarified by project maintainers.
 ## Enforcement
 
 Instances of abusive, harassing, or otherwise unacceptable behavior may be
-reported by contacting a zhmc-ansible-modules project maintainer,
-Juergen Leopold leopoldj@de.ibm.com, and/or Andreas Maier maiera@de.ibm.com. All
-complaints will be reviewed and investigated and will result in a response that
+reported by contacting an
+[admin of this project](https://github.com/zhmcclient/zhmc-ansible-modules/people).
+All complaints will be reviewed and investigated and will result in a response that
 is deemed necessary and appropriate to the circumstances. The project team is
 obligated to maintain confidentiality with regard to the reporter of an incident.
 Further details of specific enforcement policies may be posted separately.

docs/CONTRIBUTING.html

@@ -158,6 +158,8 @@
   <div class="section" id="contributing">
 <h1>Contributing<a class="headerlink" href="#contributing" title="Permalink to this headline">¶</a></h1>
 <p>Third party contributions to this project are welcome!</p>
+<p>If you want to contribute, please first contact one of the
+[admins of this project](<a class="reference external" href="https://github.com/zhmcclient/zhmc-ansible-modules/people">https://github.com/zhmcclient/zhmc-ansible-modules/people</a>).</p>
 <p>In order to contribute, create a <a class="reference external" href="https://help.github.com/articles/using-pull-requests/">Git pull request</a>, considering this:</p>
 <ul class="simple">
 <li><p>Test is required.</p></li>
@@ -189,10 +191,9 @@ <h2>Format of commit messages<a class="headerlink" href="#format-of-commit-messa
 a colon.</p>
 <p>It can include a more detailed description after the summary line. This is
 where you explain why the change was done, and summarize what was done.</p>
-<p>It must end with the DCO (Developer Certificate of Origin) sign-off line in the
+<p>It must end with a sign-off line in the
 format shown in the example below, using your name and a valid email address of
-yours. The DCO sign-off line certifies that you followed the rules stated in
-<a class="reference external" href="https://raw.githubusercontent.com/zhmcclient/zhmc-ansible-modules/master/DCO1.1.txt">DCO 1.1</a>. In short, you certify that you wrote the patch or otherwise have
+yours. The sign-off line certifies that you wrote the patch or otherwise have
 the right to pass it on as an open-source patch.</p>
 <p>We use <a class="reference external" href="http://gitcop.com/">GitCop</a> during creation of a pull request to check whether the commit
 messages in the pull request comply to this format.