The update needs the version input (#4617)

* The update needs the version input

Without _version the update don't work

* Update src/fragments/lib/graphqlapi/js/mutate-data.mdx

---------

Co-authored-by: Rene Brandel <[email protected]>
Co-authored-by: Katie Goines <[email protected]>

Author: 3 people

src/fragments/lib/graphqlapi/js/mutate-data.mdx

@@ -114,6 +114,7 @@ import * as mutations from './graphql/mutations';
 
 const todoDetails = {
   id: 'some_id',
+//  _version: 'current_version', // add the "_version" field if your AppSync API has conflict detection (required for DataStore) enabled
   description: 'Updated description'
 };