finish router refrence

docs/router/src/reference/routing-update-callback.md

@@ -1,13 +1,12 @@
 # Routing Update Callback
 
-In some cases we might want to run custom code when the current route changes.
-For this reason, the [`RouterConfiguration`] exposes an `on_update` field.
+In some cases, we might want to run custom code when the current route changes.
+For this reason, the [`RouterConfig`] exposes an `on_update` field.
 
 ## How does the callback behave?
 
 The `on_update` is called whenever the current routing information changes. It
-is called after the router updated its internal state, but before depended
-components and hooks are updated.
+is called after the router updated its internal state, but before dependent components and hooks are updated.
 
 If the callback returns a [`NavigationTarget`], the router will replace the
 current location with the specified target. It will not call the
@@ -16,54 +15,11 @@ current location with the specified target. It will not call the
 If at any point the router encounters a
 [navigation failure](./failures/index.md), it will go to the appropriate state
 without calling the `on_update`. It doesn't matter if the invalid target
-initiated the navigation, was found as a redirect target or returned by the
+initiated the navigation, was found as a redirect target, or was returned by the
 `on_update` itself.
 
 ## Code Example
 
 ```rust, no_run
-# // Hidden lines (like this one) make the documentation tests work.
-# extern crate dioxus;
-# extern crate dioxus_router;
-# extern crate dioxus_ssr;
-#
-use std::sync::Arc;
-
-use dioxus::prelude::*;
-use dioxus_router::prelude::*;
-
-fn App(cx: Scope) -> Element {
-    use_router(
-        cx,
-        &|| RouterConfiguration {
-            # synchronous: true,
-            on_update: Some(Arc::new(|state| -> Option<NavigationTarget> {
-                if state.path == "/" {
-                    return Some("/home".into());
-                }
-
-                None
-            })),
-            ..Default::default()
-        },
-        &|| Segment::empty().fixed("home", comp(Content))
-    );
-
-    render! {
-        Outlet { }
-    }
-}
-
-fn Content(cx: Scope) -> Element {
-    render! {
-        p { "Some content" }
-    }
-}
-#
-# let mut vdom = VirtualDom::new(App);
-# vdom.rebuild();
-# assert_eq!(dioxus_ssr::render(&mut vdom), "<p>Some content</p>");
+{{#include ../../examples/routing_update.rs:router}}
 ```
-
-[`NavigationTarget`]: https://docs.rs/dioxus-router-core/latest/dioxus_router_core/navigation/enum.NavigationTarget.html
-[`RouterConfiguration`]: https://docs.rs/dioxus-router/latest/dioxus_router/hooks/struct.RouterConfiguration.html