Update networking.md

Author: cachai2

articles/container-apps/networking.md

@@ -194,7 +194,7 @@ Subnet address ranges can't overlap with the following ranges reserved by Azure
 - 172.31.0.0/16
 - 192.0.2.0/24
 
-If you created your container apps with a custom service CIDR, you should ensure that your container app's subnet doesn't conflict with your custom service CIDR range.
+If you created your container apps environment with a custom service CIDR, you should ensure that your container app's subnet or any peered subnet doesn't conflict with your custom service CIDR range.
 
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