Removed indent from sides of install pages
Removed indent from sides of install pages

Now it's a col-4/col-8 layout, with the easy install
instructions with the 8s.

AndrewBrinker/rust-www,ituxbag/rust-www,ituxbag/rust-www,ituxbag/rust-www,azerupi/rust-www,azerupi/rust-www,AndrewBrinker/rust-www,ituxbag/rust-www,starsep/rust-www,starsep/rust-www,jFransham/rust-www,jFransham/rust-www,ituxbag/rust-www,starsep/rust-www,AndrewBrinker/rust-www,jFransham/rust-www,starsep/rust-www,AndrewBrinker/rust-www,ituxbag/rust-www,starsep/rust-www,azerupi/rust-www,jFransham/rust-www,AndrewBrinker/rust-www,AndrewBrinker/rust-www,starsep/rust-www,azerupi/rust-www,azerupi/rust-www