more exercise in 2.9

step2-09/exercise/src/actions/index.ts

@@ -15,7 +15,7 @@ export const actionsWithService = {
     return async (dispatch: any, getState: () => Store) => {
       // Replace the return true with:
       // 1. first call the actions.addTodo() function
-      // 2. store the resultant id
+      // 2. store the resultant id (because the id was generated by that addTodo() call)
       // 3. dispatch the action message generated by that call
       // 4. pass the id and the todo from the state into the service call service.add()
       return true;