title: Custom label for Travis CI badge on github repo
body: <p>I'm trying to add 2 badges to my github repo readme, so I can see build status of my dev branch and master branch. I was able to add the badges (and they work too) but I'm not able to differentiate between the badge for master or dev.</p>
  
  <p><a href="https://i.stack.imgur.com/PoY4I.png" rel="noreferrer"><img src="https://i.stack.imgur.com/PoY4I.png" alt="enter image description here"></a></p>
  
  <p>Is there a way to add custom text something [dev|passing] [master|failing], etc?</p>