Merge #633

633: Add missing `$` to documentation code sample r=norkunas a=guimachiavelli

## Related issue
Fixes [issue first reported on the documentation repo](meilisearch/documentation#2782).

## What does this PR do?
Add missing `$` to documentation code sample

Co-authored-by: gui machiavelli <[email protected]>

Author: meili-bors[bot]

.code-samples.meilisearch.yaml

@@ -670,7 +670,7 @@ update_faceting_settings_1: |-
 reset_faceting_settings_1: |-
   $client->index('books')->resetFaceting();
 multi_search_1: |-
-  client->multiSearch([
+  $client->multiSearch([
       (new SearchQuery())
           ->setIndexUid('movies')
           ->setQuery('pooh')