Address https://github.com/matthieugrieger/mumbledj/issues/24: Add warning about youtube-dl installation
Address https://github.com/matthieugrieger/mumbledj/issues/24: Add warning about youtube-dl installation
matthieugrieger/mumbledj,Gamah/mumbledj,r3valkyrie/mumbledj,pzduniak/mumbledj,RichardNysater/mumbledj,GabrielPlassard/mumbledj,MrKrucible/mumbledj,fiveofeight/mumbledj