shorten readme
shorten readme

atomicguy/aframe-fence-component,nylki/aframe-fit-texture-component,twosmalltrees/aframe-orbit-controls-component,scenevr/voxel-component,tizzle/aframe-sprite-component,nylki/aframe-lsystem-component,tizzle/aframe-orbit-controls-component,dbradleyfl/aframe-gridhelper,gasolin/aframe-href-component,ngokevin/aframe-component-boilerplate