Merge pull request #123442 from azarboon/patch-144

Update virtual-networks-udr-overview.md

Author: Court72

articles/virtual-network/virtual-networks-udr-overview.md

@@ -70,7 +70,7 @@ You create custom routes by either creating [user-defined](#user-defined) routes
 
 ### User-defined
 
-You can create custom, or user-defined(static), routes in Azure to override Azure's default system routes, or to add more routes to a subnet's route table. In Azure, you create a route table, then associate the route table to zero or more virtual network subnets. Each subnet can have zero or one route table associated to it. To learn about the maximum number of routes you can add to a route table and the maximum number of user-defined route tables you can create per Azure subscription, see [Azure limits](../azure-resource-manager/management/azure-subscription-service-limits.md?toc=%2fazure%2fvirtual-network%2ftoc.json#networking-limits). When you create a route table and associate it to a subnet, the table's routes are combined with the subnet's default routes. If there are conflicting route assignments, user-defined routes override the default routes.
+To customize your traffic routes, you shouldn't modify the default routes but you should create custom, or user-defined(static) routes which override Azure's default system routes. In Azure, you create a route table, then associate the route table to zero or more virtual network subnets. Each subnet can have zero or one route table associated to it. To learn about the maximum number of routes you can add to a route table and the maximum number of user-defined route tables you can create per Azure subscription, see [Azure limits](../azure-resource-manager/management/azure-subscription-service-limits.md?toc=%2fazure%2fvirtual-network%2ftoc.json#networking-limits). When you create a route table and associate it to a subnet, the table's routes are combined with the subnet's default routes. If there are conflicting route assignments, user-defined routes override the default routes.
 
 You can specify the following next hop types when creating a user-defined route: