title: How to resolve git MERGING state?
body: <p>I have a pull request from a source branch to a target branch.</p>
  
  <p>I have run:  </p>
  
  <pre><code>$&gt; git checkout target-branch
  $&gt; git pull
  $&gt; git checkout source-branch
  $&gt; git merge target-branch
  </code></pre>
  
  <p>There were some conflicts which I have resolved with:</p>
  
  <pre><code>$&gt; git mergetool
  </code></pre>
  
  <p>This merge wasn't 100% successful, so I manually removed the conflict artefacts (<code>&gt;&gt;&gt;&gt;&gt;&gt;</code> etc) from the files and responding to the prompt:</p>
  
  <pre><code>&gt;Was the merge successful? [y/n]
  </code></pre>
  
  <p>with <code>y</code>.</p>
  
  <p>So I am happy with the state of all of the files in my source branch, but my CLI now shows:</p>
  
  <pre><code>dir/to/my/project (source-branch|MERGING)
  $&gt;
  </code></pre>
  
  <p>How do I tell git that I'm happy with the merge I've done?</p>