Wrong documentation for amOnPage()

[mytskine]

The amOnPage() method used to accept both a path (e.g. /that/3) and a route (e.g. ["/that/view", "id" => 3]). This feature was removed, and the present method is not backward compatible. In fact, one can't use a full route anymore, except by splitting it into amOnRoute() (so upgrading an old test suite is painful). The problem is that the phpdoc was not updated:

     * @param string|array $page the URI or route in array format
     */
    public function amOnPage(string $page): void

[samdark]

Fixed by #86