Cleaned up model docs
Cleaned up model docs

Minor changes to the section on Model Events [ci skip]

samsonasik/CodeIgniter4,lonnieezell/CodeIgniter4,natanfelles/CodeIgniter4,samsonasik/CodeIgniter4,ytetsuro/CodeIgniter4,kenjis/CodeIgniter4,bcit-ci/CodeIgniter4,natanfelles/CodeIgniter4,bcit-ci/CodeIgniter4,lonnieezell/CodeIgniter4,kenjis/CodeIgniter4,lonnieezell/CodeIgniter4,natanfelles/CodeIgniter4,samsonasik/CodeIgniter4,kenjis/CodeIgniter4,samsonasik/CodeIgniter4,samsonasik/CodeIgniter4,kenjis/CodeIgniter4,lonnieezell/CodeIgniter4,natanfelles/CodeIgniter4,ytetsuro/CodeIgniter4,kenjis/CodeIgniter4,bcit-ci/CodeIgniter4,natanfelles/CodeIgniter4,samsonasik/CodeIgniter4,lonnieezell/CodeIgniter4,bcit-ci/CodeIgniter4,lonnieezell/CodeIgniter4,ytetsuro/CodeIgniter4,bcit-ci/CodeIgniter4,ytetsuro/CodeIgniter4,natanfelles/CodeIgniter4,ytetsuro/CodeIgniter4,ytetsuro/CodeIgniter4