title: cannot push work on git "failed to push some refs"
body: <p>I have been trying to push my work on github but I get this error :</p>
  <pre><code>PS C:\Users\xxx\Desktop\wiki\wiki&gt; git push origin --all
  To https://github.com/me50/xxx.git
   ! [rejected]        web50/projects/2020/x/wiki -&gt; web50/projects/2020/x/wiki (fetch first)
  error: failed to push some refs to 'https://github.com/me50/xxx.git'
  hint: Updates were rejected because the remote contains work that you do
  hint: not have locally. This is usually caused by another repository pushing
  hint: to the same ref. You may want to first integrate the remote changes
  hint: (e.g., 'git pull ...') before pushing again.
  hint: See the 'Note about fast-forwards' in 'git push --help' for details.
  </code></pre>