.github/CONTRIBUTING.md: explain that compositors are unsupported (#2621)
.github/CONTRIBUTING.md: explain that compositors are unsupported (#2621)


avrelaun/i3,acrisci/i3,cornerman/i3,Airblader/i3-original,Airblader/i3,i3/i3,acrisci/i3,cornerman/i3,stapelberg/i3,avrelaun/i3,acrisci/i3,acrisci/i3,cornerman/i3,Airblader/i3,Airblader/i3-original,Airblader/i3-original,avrelaun/i3,Airblader/i3,avrelaun/i3,cornerman/i3,stapelberg/i3,acrisci/i3,Airblader/i3,stapelberg/i3,Airblader/i3-original,Airblader/i3-original,i3/i3,i3/i3,i3/i3,stapelberg/i3