Update load-balancer-outbound-connections.md

In this article section, I am not seeing Port reuse. So, I have added. Please review from your side.

Author: vikedesai

articles/load-balancer/load-balancer-outbound-connections.md

@@ -150,7 +150,7 @@ For more information about connection pooling with Azure App Service, see [Troub
 
 New outbound connections to a destination IP fail when port exhaustion occurs. Connections succeed when a port becomes available. This exhaustion occurs when the 64,000 ports from an IP address are spread thin across many backend instances. For guidance on mitigation of SNAT port exhaustion, see the [troubleshooting guide](./troubleshoot-outbound-connection.md).  
 
-### Port reuse
+## Port reuse
 For TCP connections, the load balancer uses a single SNAT port for every destination IP and port. For connections to the same destination IP, a single SNAT port can be reused as long as the destination port differs. Reuse isn't possible when there already exists a connection to the same destination IP and port.
 
 For UDP connections, the load balancer uses a **port-restricted cone NAT** algorithm, which consumes one SNAT port per destination IP, regardless of the destination port.