Badges don't render properly

[asachs01]

Page: https://bonsai.sensu.io/assets/rgeniesse/sensu-pushbullet-handler
Screenshot:

Image source link: https://github.com/rgeniesse/sensu-pushbullet-handler/raw/1.0.1///travis-ci.com/rgeniesse/sensu-pushbullet-handler.svg?branch=master

Issue:
Badges aren't being rendered due to the github page for the asset being appended to the badge.

Solution:
Remove the github page portion of the link and badges work again.

[pzupan]

pull request #99