It adds travis CI badge to the README.md
It adds travis CI badge to the README.md

mkungla/aframe,fernandojsg/aframe,fernandojsg/aframe,aframevr/aframe,jaxmolina/ar,mkungla/aframe,RSpace/aframe,jaxmolina/ar,RSpace/aframe,darkwing/aframe,MatthewShotton/aframe,msimpson/aframe,wizgrav/aframe,aframevr/aframe,MatthewShotton/aframe,ngokevin/aframe,googlecreativelab/aframe,aframevr/aframe-core,weddingdj/aframe,ngokevin/aframe,dmarcos/aframe,msimpson/aframe,darkwing/aframe,jzitelli/aframe,dmarcos/aframe,weddingdj/aframe,googlecreativelab/aframe,chenzlabs/aframe,jzitelli/aframe,chenzlabs/aframe,wizgrav/aframe,aframevr/aframe-core