Include id as filterable attribute in getting_started file

Author: icyJoseph

tests/env/node/getting_started.js

@@ -21,7 +21,8 @@ const { MeiliSearch } = require('../../../dist/bundles/meilisearch.umd.js')
   // If the index 'movies' does not exist, MeiliSearch creates it when you first add the documents.
   await index.updateFilterableAttributes([
     'director',
-    'genres'
+    'genres',
+    'id'
   ])
 
   let response = await index.addDocuments(dataset)