Update README.md

Author: ulukaya

vision-annotate-images/README.md

@@ -5,6 +5,8 @@ This function acts as a pass through to the [Cloud Vision JSON API](https://clou
 To call this from an app, you must first sign-in using [Firebase Auth](https://firebase.google.com/docs/auth).
 Only users who pass a valid Firebase ID token as a Bearer token in the `Authorization` header of the HTTP request are authorized to use the function.
 
+Explore the ready-to-use APIs: [text recognition](https://firebase.google.com/docs/ml/recognize-text), [image labeling](https://firebase.google.com/docs/ml/label-images), and [landmark recognition](https://firebase.google.com/docs/ml/recognize-landmarks)
+
 
 ## Contributing
 
@@ -13,4 +15,4 @@ We'd love that you contribute to the project. Before doing so please read our [C
 
 ## License
 
-© Google, 2017. Licensed under an [Apache-2](../LICENSE) license.
+© Google, 2017. Licensed under an [Apache-2](../LICENSE) license.