Add "Team" link to header
Add "Team" link to header

The subteams page isn't as useful without a way to reach it.  Add it to
the header.  This involves adding another column to the links; it's
starting to get a bit crowded in the heaser, but I don't think it's too
bad.

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