Update network/public-gateways/quickstart.mdx

Co-authored-by: nerda-codes <[email protected]>

Author: RoRoJ

network/public-gateways/quickstart.mdx

@@ -60,7 +60,7 @@ When you activate SSH bastion on your Public Gateway, all [SSH keys held in your
 3. Under **SSH Bastion** click the **Activate** button. A pop-up displays.
 4. Enter the port that you want your SSH bastion to listen on (or leave the default port in place).
     <Message type="tip">
-      The default port is 61000. When setting your own port, you must choose a port number between 1024 and 59999. The port that the SSH bastion listens on must not be a port already in use by a [NAT rule](/network/public-gateways/concepts/#nat).
+      The default port is `61000`. When setting your own port, you must choose a port number between `1024` and `59999`. The port that the SSH bastion listens on must not be a port already in use by a [NAT rule](/network/public-gateways/concepts/#nat).
     </Message>
 5. Copy the command to connect to a resource, and click **Save SSH bastion settings**.