add rewritten router book and fix features code

docs/router/src/SUMMARY.md

@@ -1,11 +1,33 @@
 # Summary
 
-- [Introduction](./README.md)
+[Introduction](./index.md)
 
-- [Guide](./guide/index.md)
-    - [Getting Started](./guide/getting-started.md)
-    - [Creating Our First Route](./guide/first-route.md)
-    - [Building a Nest](./guide/building-a-nest.md)
-    - [Redirection Perfection](./guide/redirection-perfection.md)
-- [Reference](./reference/index.md)
-    - [X]()
+# Features
+- [Adding the Router to Your Application](./features/index.md)
+- [Defining Routes](./features/routes/index.md)
+  - [Nested Routes](./features/routes/nested.md)
+  - [Catch All Routes](./features/routes/catch_all.md)
+  - [Matching Routes](./features/routes/matching.md)
+  - [Fallback Routes (404 page)](./features/routes/fallback.md)
+  - [Multiple Components & Redirects](./features/routes/multiple-and-redirect.md)
+- [Outlets](./features/outlets.md)
+- [Links & Navigation](./features/navigation/index.md)
+  - [Named Navigation](./features/navigation/name.md)
+  - [External Navigation](./features/navigation/external.md)
+  - [Programmatic Navigation](./features/navigation/programmatic.md)
+- [Query](./features/query.md)
+- [Navigation Failures](./features/failures/index.md)
+  - [Named Navigation Failure](./features/failures/named.md)
+  - [External Navigation Failure](./features/failures/external.md)
+- [History Providers](./features/history-providers.md)
+- [History Buttons](./features/history-buttons.md)
+- [Sitemap Generation](./features/sitemap-generation.md)
+- [Routing Update Callback](./features/routing-update-callback.md)
+
+# Example Project
+- [Overview](./example/index.md)
+- [Creating Our First Route](./example/first-route.md)
+- [Building a Nest](./example/building-a-nest.md)
+- [Navigation Targets](./example/navigation-targets.md)
+- [Redirection Perfection](./example/redirection-perfection.md)
+- [Full Code](./example/full-code.md)