Use SVG coverage badge

README.md

@@ -1,4 +1,7 @@
-# Google APIs Node.js Client [![Build Status][travisimg]][travis] [![Code Coverage][coverallsimg]][coveralls]
+# Google APIs Node.js Client
+
+[![Build Status][travisimg]][travis]
+[![Code Coverage][coverallsimg]][coveralls]
 
 Google's officially supported [node.js][node] client library for using
 Google APIs. It also supports authorization and authentication with OAuth 2.0.
@@ -354,4 +357,4 @@ See [CONTRIBUTING][contributing].
 [gcloud]: https://github.com/GoogleCloudPlatform/gcloud-node
 [cloudplatform]: https://developers.google.com/cloud/
 [coveralls]: https://coveralls.io/r/google/google-api-nodejs-client?branch=master
-[coverallsimg]: https://coveralls.io/repos/google/google-api-nodejs-client/badge.png?branch=master
+[coverallsimg]: https://img.shields.io/coveralls/google/google-api-nodejs-client.svg