fixed some typos

src/Service/Router.php

@@ -1,4 +1,11 @@
 <?php
+/*
+ * Copyright (c) 2022. Micha Espey <tracer@24unix.net>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ *
+ */
 
 namespace App\Service;
 
@@ -17,6 +24,7 @@ class Router
 
     /*
      * This method takes a route like /admin/users/{user} and creates a regex to match on call
+     * More complex routes as /posts/{thread}/show/{page} are supported as well.
      */
     function addRoute(string $name, string $route, Closure $callback): void
     {
@@ -26,6 +34,7 @@ class Router
 
         // create regex for route:
         $regex = preg_replace(pattern: '/(?<={).+?(?=})/', replacement: '(.*?)', subject: $route);
+
         // code below is ugly, better match including the braces
         $regex = str_replace(search: '{', replace: '', subject: $regex);
         $regex = str_replace(search: '}', replace: '', subject: $regex);
@@ -37,7 +46,7 @@ class Router
     }
 
     /*
-     * Check is there is a known route and executed the callback.
+     * Check if there is a known route and executes the callback.
      * Currently no 404 handling.
      */
     public function handleRouting(): void