src/SimplePlugin.php
public function register_admin_options_page() {
        add_submenu_page(
            $this->get_id(),
            $this->get_title(),
            $this->get_title(__('Settings', $this->get_textdomain())),
            'manage_options',
            $this->get_id('-settings'),
            array($this, 'render_admin_options_page')
        );
    }
public function register_admin_options_page() {
        add_submenu_page(
            $this->get_id(),
            $this->get_title(),
            $this->get_title(__('Settings', $this->get_textdomain())),
            'manage_options',
            $this->get_id('-settings'),
            array($this, 'render_admin_options_page')
        );
    }
Registers administration menu for the plugin.

@since 0.1.3
@return void