Generate GH page from README

(cherry picked from commit 5c4d28654344ee091bf75269b1f34a96c3008333)

Conflicts:
	index.html
Replace html by Jade template and reuse README

B'cause DRY rules!

(cherry picked from commit 1d648be6cac76b8bc3b7ea4e9b622832202fd723)
Uglify HTML - save electricity

(cherry picked from commit 63850af7efc7ddde963cfccd7c466bad1ea6d6c7)
Add link to the Demo page

(cherry picked from commit bb3409f3b648c07d2c307b7a002081316e3b238c)