Update README.md

README.md

@@ -12,10 +12,14 @@
   <a href="https://github.com/carbon-app/carbon/blob/master/LICENSE">
     <img src="https://img.shields.io/github/license/carbon-app/carbon.svg" alt="MIT License" />
   </a>
+  <a href="http://makeapullrequest.com">
+    <img src="https://img.shields.io/badge/PRs-welcome-brightgreen.svg" alt="PRs Welcome" />
+  </a>
+  <!-- 
   <a href="https://spectrum.chat/carbon-now">
     <img src="https://withspectrum.github.io/badge/badge.svg" alt="Join the community on Spectrum" />
   </a>
-  <!-- <a href="https://greenkeeper.io/">
+  <a href="https://greenkeeper.io/">
     <img src="https://badges.greenkeeper.io/carbon-app/carbon.svg" alt="Greenkeeper badge" />
   </a>
   <a href="https://app.fossa.io/projects/git%2Bgithub.com%2Fcarbon-app%2Fcarbon?ref=badge_shield">