[docs] remove unused cursor heading
[docs] remove unused cursor heading

ngokevin/aframe,aframevr/aframe,aframevr/aframe,mkungla/aframe,mkungla/aframe,dmarcos/aframe,wizgrav/aframe,dmarcos/aframe,wizgrav/aframe,chenzlabs/aframe,RSpace/aframe,chenzlabs/aframe,RSpace/aframe,ngokevin/aframe