Updated Bungee Set Up (markdown)

Bungee-Set-Up.md

@@ -80,6 +80,10 @@ Server:
 >
 > Plan does not enable completely at this point. `Server.IP` setting and MySQL are required.
 
+> 💡 **Multiple proxy servers?**  
+>
+> You can install Plan on multiple proxy servers. After completing all steps, you can follow Step 7 to install 2nd proxy.
+
 ## Step 2: Create a MySQL Database for Plan
 
 Plan does not create a new database automatically, so you need to either create or use an existing one.