make sql

Author: stayseesong

src/connections/reverse-etl/reverse-etl-source-setup-guides/postgres-setup.md

@@ -15,7 +15,7 @@ To set up Postgres with Reverse ETL:
     * Make sure [the following IP addresses](/docs/connections/storage/warehouses/faq/#which-ips-should-i-allowlist) can access the database. 
 3. Run the SQL commands below to create a user named `segment`.
 
-    ```ts
+    ```sql
     -- create a user named "segment" that Segment will use when connecting to your Postgres cluster.
     CREATE USER segment PASSWORD '<enter password here>';