Update routing (#1707)

Added a little description and list of events in router

en/routing.md

@@ -68,6 +68,9 @@
         <li>
           <a href="#annotations">Annotations Router</a>
         </li>
+        <li>
+          <a href="#events">Events</a>
+        </li>
         <li>
           <a href="#registration">Registering Router instance</a>
         </li>
@@ -1094,6 +1097,19 @@ foreach ($testRoutes as $testRoute) {
 }
 ```
 
+<a name='events'></a>
+## Events
+Like many other components, routers also have events. None of the events can stop the operation. Below is a list of available events
+
+| Event                      | Description                          |
+|----------------------------|--------------------------------------|
+| `router:beforeCheckRoutes` | Fired before check all loaded routes |
+| `router:beforeCheckRoute`  | Fired before check a route           |
+| `router:matchedRoute`      | Fired when a route is matched        |
+| `router:notMatchedRoute`   | Fired is any route is matched        |
+| `router:afterCheckRoutes`  | Fired after check all routes         |
+| `router:beforeMount`       | Fired before mount a new route       |
+
 <a name='annotations'></a>
 ## Annotations Router
 This component provides a variant that's integrated with the [annotations](/[[language]]/[[version]]/annotations) service. Using this strategy you can write the routes directly in the controllers instead of adding them in the service registration: