docs: Add missing nav entry

README.md

@@ -6,6 +6,7 @@ A highly available load balancer with support for queueing, routing and auto-sca
 * [Example setups](./docs/example-setups.md)
 * [Routing](./docs/routing/index.md)
   * [PythonScriptRouter](./docs/routing/PythonScriptRouter.md)
+  * [ClientTagsRouter](./docs/routing/ClientTagsRouter.md)
 * [Persistence](./docs/persistence/index.md)
   * [In-memory](./docs/persistence/in-memory.md)
   * [Redis](./docs/persistence/redis.md)