Fix error in filtering_guide_2

Author: eskombro

.code-samples.meilisearch.yaml

@@ -189,7 +189,7 @@ filtering_guide_1: |-
   })
 filtering_guide_2: |-
   client.getIndex('movies').search('Batman', {
-    filters: 'release_date > 795484800 AND (director = "Tim Burton" OR director = "Christopher Nolan"'
+    filters: 'release_date > 795484800 AND (director = "Tim Burton" OR director = "Christopher Nolan")'
   })
 filtering_guide_3: |-
   client.getIndex('movies').search('horror', {