Documentation tasks

Rewritten docs. Some things to document:
- hideFromAPIDocumentation
- binary responses
- plugin api: responses - description, $stage property, scribe:strategy
- --env
- Use database transactions and create() when instantiating factory models
- fileParams

Release blocker

Port recent changes from old repo

Features

@header
--no-extraction
Possible feature: https://github.com/mpociot/laravel-apidoc-generator/issues/731
file input python

Fixes

When groups are removed, the markdown files persist, so they remain in the doc