Fix typo bt -> by
Fix typo bt -> by
weddingdj/aframe,aframevr/aframe,wizgrav/aframe,RSpace/aframe,chenzlabs/aframe,dmarcos/aframe,wizgrav/aframe,googlecreativelab/aframe,dmarcos/aframe,ngokevin/aframe,mkungla/aframe,ngokevin/aframe,googlecreativelab/aframe,chenzlabs/aframe,mkungla/aframe,RSpace/aframe,weddingdj/aframe,aframevr/aframe