Update meilisearch.md

Reference 
https://misskey-doc.7ka.org/ja/misskey/enable-meilisearch
https://discord.com/channels/1126590789322035230/1163467816284991591/1291157680840507454

content/en/docs/customisation/meilisearch.md

@@ -57,7 +57,7 @@ Update sharkey's default.yml to contain the below and restart.
 
 ```yaml
     meilisearch:
-      host: locallhost # Host for sharkey to connect to.
+      host: meilisearch # Host for sharkey to connect to.
       port: 7700
       apiKey: '<Key from previus step>'
       ssl: false