title: Regex for Gitlab CI Test coverage parsing
body: <p>I have been struggling to find a regular expression that will work in the "Test coverage parsing" input on the "CI/CD Pipelines" page. It doesn't help that the examples show inconsistent examples, i.e. some escape parenthesis and other don't, same with percent symbols, some capture the explicit result in <code>$1</code>, etc. Anyway, here is my text - whats the regex?</p>
  
  <p>CI Badge:</p>
  
  <pre><code>![coverage](https://gitlab.com/mycompany/master/badges/master/coverage.svg?job=coverage)
  </code></pre>
  
  <p>Output text:</p>
  
  <pre><code>Unit test coverage:
     10.01% blocks
     10.01% lines
  </code></pre>
  
  <p>Tried so far: (added the slashes simply to represent the space at front or regex)</p>
  
  <pre><code>/ \(\d+\.\d+\%\) blocks/
  / (\d+\.\d+\%) blocks/
  / (\d+\.\d+%) blocks/
  / (\d+\.\d+)% blocks/
  </code></pre>