Updating and improving the documentation

[ampersarnie]

Documentation is not complete and requires some improvement in some areas. I'll be using this issue to track any documentation ready for the release of v1.0.0.

• [x] Setting the WP locale configuration (see: #56).
• [x] Setting up seeder clean routines (see: #70)
  • [x] Extend the code examples and API.
  • [x] CLI arguments and commands.
• [x] Setting the PHP version (see: #69)
• [x] Manual user switching. (see: #62)
• [x] Exposing the db port configuration (see: #60)
• [ ] Examples page
• [x] Setting the php memory limit configuration (see: #78).
• Corrections
  • [x] Plugins path typo (see: #86)