updated the readme.md

This branch is a personal project to recreate RainFireJazz.com, but
spice it up with maroslaw's rainyday.js code.
first revision

reformatted code to load default (placeholder) image, default rain /
fire / jazz videos
load random background

Load a random image from an array if the user doesn't specify one
added vex, footer

going to try to use Vex for alerts brought up by clicking links on the
footer.
Started work on Vex alterts

Adding small descriptors for the site in the footer using Vex
Finalized site

Should be up at http://projects.ralphdrake.com/rainfirejazz/ soon!