Added the API Documentation section
Fixed the links
Merge pull request #6 from ezimuel/feature/api-doc

API documentation
[#6] Rewrote most of "customization" chapter

On review, realized that it was mixing two types of customization:

- view script customization
- custom view strategy/content negotiation

Rewrote to deal with these separately and fully detail how to accomplish each.
[#6] Edited intro document
[#6] Edited "swagger" document
Updated TOC

- and renamed customization chapter
Merge branch 'hotfix/6'

Close #6