Added Hale tutorial, updated README

Summary of Changes:
Added a Tutorial

Cleaned json in spec
Rewrote section on render
Now supports "enctype" and "request_encoding" as two separate fields
Changed "enctype" default
Cleaned up text for "options"
should be order resource, not object as you do in paragraph following the example. BTW, seems in your editor u are not using returns @120 chars. Seems github wraps this now (didn't in the past). Makes difficult to put comments on actual line.