Add warning

Author: benitav

installation/database-setup/security-and-ip-filtering.mdx

@@ -63,7 +63,9 @@ For enhanced security, you can restrict database access to PowerSync Cloud's IP
     </Tab>
 </Tabs>
 
+<Warning>
 Do not rely on IP filtering as a primary form of security. Always use strong database passwords, and use client certificates if additional security is required.
+</Warning>
 
 ## VPC Peering