Fix link

Author: johndowns

articles/reliability/reliability-application-gateway-v2.md

@@ -191,7 +191,7 @@ The following section describes what to expect when Application Gateway v2 is co
 
   - *Zone-redundant:* The platform attempts to maintain the capacity of your gateway by creating temporary instances in other availability zones.
 
-    Internally, Application Gateway uses virtual machine scale sets, which perform [best-effort zone balancing] [best-effort zone balancing](/azure/virtual-machine-scale-sets/virtual-machine-scale-sets-use-availability-zones#zone-balancing). Because of this behavior, scaling operations might not occur when the capacity can't be evenly divided between zones (+/- 1 instance).
+    Internally, Application Gateway uses virtual machine scale sets, which perform [best-effort zone balancing](/azure/virtual-machine-scale-sets/virtual-machine-scale-sets-use-availability-zones#zone-balancing). Because of this behavior, scaling operations might not occur when the capacity can't be evenly divided between zones (+/- 1 instance).
 
   - *Zonal:* You're responsible for creating instances in healthy zones if you require them.