post-review updates

Author: chalin

public/docs/dart/latest/guide/lifecycle-hooks.jade

@@ -5,7 +5,7 @@ block includes
 
 block other-angular-subsystems
   :marked
-    The router, for instance, also has it's own [router lifecycle
+    The router, for instance, also has its own [router lifecycle
     hooks](router.html#router-lifecycle-hooks) that allow us to tap into
     specific moments in route navigation.
     A parallel can be drawn between `ngOnInit` and `routerOnActivate`.  Both are