added some stuff

app/middleware.php

@@ -0,0 +1,16 @@
+<?php //middleware
+use Slim\App;
+
+return function(App $app) {
+    $setting = $app->getContainer()->get('settings');
+
+    $app->addErrorMiddleware(
+        $setting['displayErrorDetails'],
+        $setting['logErrors'],
+        $setting['logErrorDetails']
+    );
+
+    // Add Twig-View Middleware
+    $app->add(TwigMiddleware::createFromContainer($app));
+    
+};