[Docs] Add additional correction to upgrade guide

lindyhopchris · lindyhopchris · commit 99ab0271292e · 2016-10-07T10:16:54.000+01:00
diff --git a/UPGRADE.md b/UPGRADE.md
@@ -51,8 +51,8 @@ After:
 ``` php
 return [
   'namespaces' => [
-    'v2' => [
-      'url-prefix' => '/api/v2',
+    'v1' => [
+      'url-prefix' => '/api/v1',
       'supported-ext' => null,
       'paging' => [
         'page' => null,
