Add new line in code sample file

Author: bidoubiwa

.code-samples.meilisearch.yaml

@@ -371,4 +371,4 @@ get_dump_status_1: |-
   client.getDumpStatus("20201101-110357260")
 phrase_search_1: |-
   client.index('movies')
-    .search('"african american" horror')
+    .search('"african american" horror')