docs(aio): change HeroService to MessagesComponent (angular#23397)

Someone probably forgot to change this when coping the sentence from a previous section. PR Close angular#23397
matsko · Apr 16, 2018 · c3280b2 · c3280b2
1 parent d11b249
commit c3280b2
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/aio/content/tutorial/toh-pt4.md b/aio/content/tutorial/toh-pt4.md
@@ -348,7 +348,7 @@ Open `MessagesComponent` and import the `MessageService`.
 
 Modify the constructor with a parameter that declares a **public** `messageService` property.
 Angular will inject the singleton `MessageService` into that property 
-when it creates the `HeroService`.
+when it creates the `MessagesComponent`.
 
 <code-example
   path="toh-pt4/src/app/messages/messages.component.ts" region="ctor">