Updated README with build instructions.
Updated README with build instructions.

beni55/contextify,szarouski/contextify,szarouski/contextify,unitecontrol/contextify,brianmcd/contextify,unitecontrol/contextify,brianmcd/contextify,beni55/contextify,narma/contextify,brianmcd/contextify,beni55/contextify,narma/contextify,szarouski/contextify,unitecontrol/contextify,narma/contextify