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"
Well, at the very least cut the redundant version (i.e. after "would be
interpreted by a client as:"...) and maybe remove the search transition on
the main resource since we have a form sample for the edit transition in
the embedded customer resource. That would make it all a little lighter as
just an intro example. Thoughts?


On Wed, Aug 20, 2014 at 11:29 AM, Shea Valentine <notifications@github.com>
wrote:

> In README.md:
>
> > @@ -63,46 +63,80 @@ clients for URI template variables and request body attributes.
> >  Basic Example:
> >  ```json
> >  {
> > -  "_meta": {
>
> I'm down, but I'm unpositive on what exactly I should change here.
> Specific suggestions?
>
> —
> Reply to this email directly or view it on GitHub
> <https://github.com/mdsol/hale/pull/11/files#r16458381>.
>