updated some comments

src/Service/Router.php

@@ -45,6 +45,7 @@ class Router
 
         // create regex for route:
         $regex = preg_replace(pattern: '/{.+?}/', replacement: '([a-zA-Z0-9]*)', subject: $route);
+        // escape \ in regex
         $regex = '/^' . str_replace(search: "/", replace: '\\/', subject: $regex) . '$/i';
 
         $route = new Route(name: $name, route: $route, regEx: $regex, parameters: $parameters, callback: $callback);
@@ -64,7 +65,7 @@ class Router
         $requestUri = $_SERVER['REQUEST_URI'];
 
         /*
-         * Static routes have preference over dynamic ones, so
+         * Static routes have precedence over dynamic ones, so
          * /admin/user/add to add and
          * /admin/user/{name} to edit is possible.
          * A user named "add" of course not :)
@@ -82,6 +83,8 @@ class Router
         }
 
         foreach ($this->dynamicRoutes as $route) {
+            // PHPStorm doesn't know that $parameters are always available,
+            // (as it is a dynamic route)  so the init the array just to mke PHPstorm happy.
             $parameters = [];
             if (preg_match(pattern: $route->getRegex(), subject: $requestUri, matches: $matches)) {
                 foreach ($route->getParameters() as $id => $parameter) {