Added upgrade note.

stevebauman · stevebauman · commit a7f8a7627e16 · 2017-02-13T10:19:03.000-05:00
diff --git a/readme.md b/readme.md
@@ -124,4 +124,9 @@ class UserController extends Controller
 }
 ```
 
-To see more usage in detail, please visit the [Adldap2 Repository](http://github.com/Adldap2/Adldap2);
+To see more usage in detail, please visit the [Adldap2 Repository](http://github.com/Adldap2/Adldap2).
+
+
+## Upgrading From 2.* to 3.*
+
+To upgrade from `v2.*` to `v3.*`, delete your `config/adldap_auth.php` and reconfigure.
