Austin Seipp authored Feb 23, 2015 and thoughtpolice committed Feb 23, 2015

This gives a very quick rundown on installation for end-users (HACKING
etc is for developers/possible contributors).

Signed-off-by: Austin Seipp <austin@well-typed.com>
(cherry picked from commit 9a1c8d96f0aaf7629cdcfad5ba67aa8a1a7b9cb3)