Revert "Revert "Installation instructions are no longer available in index.html" because they are available there, albeit with a redirect."
Revert "Revert "Installation instructions are no longer available in index.html" because they are available there, albeit with a redirect."

This reverts commit a60b5ac440f54fbd5b7eafcf411fb5df91ae498f.

mbrukman/tilemill,nyimbi/tilemill,nyimbi/tilemill,florianf/tileoven,tilemill-project/tilemill,fxtentacle/tilemill,Teino1978-Corp/Teino1978-Corp-tilemill,isaacs/tilemill,tizzybec/tilemill,fxtentacle/tilemill,nyimbi/tilemill,isaacs/tilemill,paulovieira/tilemill-clima,Teino1978-Corp/Teino1978-Corp-tilemill,mbrukman/tilemill,paulovieira/tilemill-clima,Zhao-Qi/tilemill,mbrukman/tilemill,tilemill-project/tilemill,MappingKat/tilemill,Teino1978-Corp/Teino1978-Corp-tilemill,fxtentacle/tilemill,fxtentacle/tilemill,tizzybec/tilemill,mbrukman/tilemill,Teino1978-Corp/Teino1978-Corp-tilemill,isaacs/tilemill,MappingKat/tilemill,mbrukman/tilemill,tizzybec/tilemill,Teino1978-Corp/Teino1978-Corp-tilemill,florianf/tileoven,Zhao-Qi/tilemill,Zhao-Qi/tilemill,nyimbi/tilemill,MappingKat/tilemill,Zhao-Qi/tilemill,paulovieira/tilemill-clima,paulovieira/tilemill-clima,tizzybec/tilemill,nyimbi/tilemill,MappingKat/tilemill,Zhao-Qi/tilemill,MappingKat/tilemill,tilemill-project/tilemill,tizzybec/tilemill,florianf/tileoven,fxtentacle/tilemill,paulovieira/tilemill-clima