Add README.md
Change the directory to examples refs #430: Tidy up the code
CamelCase to snake_case refs #430: Tidy up the code
Add type hinting refs #430: Tidy up the code
Add PHPDoc refs #430: Tidy up the code
Add INSTALLATION section refs #430: Tidy up the code
Merge branch 'feature/tidy-up-code' into develop refs #430: Tidy up the code