Update inbound-nat-rules.md

Author: mahipdeora

articles/load-balancer/inbound-nat-rules.md

@@ -17,7 +17,7 @@ An inbound NAT rule is used to forward traffic from a load balancer frontend to
 
 ## Why use an inbound NAT rule?
 
-An inbound NAT rule is used for port forwarding. Port forwarding lets you connect to virtual machines by using the load balancer frontend IP address and port number. The load balancer receives the traffic on a port, and based on the inbound NAT rule, forwards the traffic to a designated virtual machine on a specific backend port. 
+An inbound NAT rule is used for port forwarding. Port forwarding lets you connect to virtual machines by using the load balancer frontend IP address and port number. The load balancer receives the traffic on a port, and based on the inbound NAT rule, forwards the traffic to a designated virtual machine on a specific backend port. Note, unlike load balancing rules, inbound NAT rules do not need a health probe attached to it. 
 
 ## Types of inbound NAT rules