Update Tighten github username

resources/js/Pages/routing.jsx

@@ -73,7 +73,7 @@ export default function () {
         ]}
       />
       <P>
-        However, when using Laravel, the <A href="https://github.com/tightenco/ziggy">Ziggy</A> library can make your
+        However, when using Laravel, the <A href="https://github.com/tighten/ziggy">Ziggy</A> library can make your
         named, server-side routes available to you via a global <Code>route()</Code> function. In fact, if you are
         developing an application using one of Laravel's{' '}
         <A href="https://laravel.com/docs/starter-kits">starter kits</A>, Ziggy is already configured for you.