Fixed typo

Author: eltronix

public/docs/ts/latest/guide/router.jade

@@ -831,7 +831,7 @@ h3#nav-to-list Navigating back to the list component
   There's no point to this exercise unless we can learn something.
   We do have new ideas and techniques in mind:
 
-  * We'd like our route URLs to branch in to child route trees that reflect the component treese in our feature areas.
+  * We'd like our route URLs to branch in to child route trees that reflect the component trees in our feature areas.
 
   * The application should navigate to the *Crisis Center* by default.