Update documentation.
Update documentation.

Updated the documentation to include the latest changes.

sleepless/laravel-stapler,flaxandteal/laravel-stapler,AndreasHeiberg/laravel-stapler,aozisik/laravel-stapler,oschettler/laravel-stapler,CodeSleeve/laravel-stapler,expstudio/lumen-stapler,InMoji/laravel-stapler,neerajgoyal12/laravel-stapler,HipsterCreative/laravel-stapler