initial drafts of ReadMe.md and composer.json

Fixes #16, #85

spelling errors, composer description

First draft of ReadME, composer.json

ReadMe - Order History

ReadME - use instructions

moved FoxyCart API info to bottom of ReadME

FoxyCart setup in ReadME

ReadME updates

work on README.md, composer.json
Merge pull request #89 from jirish/readMe

Initial drafts of ReadMe.md, composer.json closes #16