docs: fix api responses
docs: fix api responses

* docs: add a space before and after `=`

* docs: replace tab with space

* docs: fix description and RST format

* docs: add `$this->` and empty line
bcit-ci/CodeIgniter4,samsonasik/CodeIgniter4,samsonasik/CodeIgniter4,ytetsuro/CodeIgniter4,samsonasik/CodeIgniter4,bcit-ci/CodeIgniter4,lonnieezell/CodeIgniter4,kenjis/CodeIgniter4,lonnieezell/CodeIgniter4,lonnieezell/CodeIgniter4,bcit-ci/CodeIgniter4,kenjis/CodeIgniter4,lonnieezell/CodeIgniter4,ytetsuro/CodeIgniter4,samsonasik/CodeIgniter4,kenjis/CodeIgniter4,bcit-ci/CodeIgniter4,ytetsuro/CodeIgniter4,kenjis/CodeIgniter4,ytetsuro/CodeIgniter4,lonnieezell/CodeIgniter4,ytetsuro/CodeIgniter4,lonnieezell/CodeIgniter4,kenjis/CodeIgniter4,bcit-ci/CodeIgniter4,samsonasik/CodeIgniter4,samsonasik/CodeIgniter4,ytetsuro/CodeIgniter4