Added elb

Route 53/_Route53.md

@@ -13,4 +13,8 @@ You can:
 ## Use Cases
 Use Route 53 to get your custom domains to point at your AWS Resources. 
 
-![route_53_routing_example.png](./route_53_routing_example.png)
+![route_53_routing_example.png](./route_53_routing_example.png)
+1. Incoming internet traffic.
+2. Route traffic to our web backed by [[_ALB|ALB]].
+3. Route traffic to an instance we use to tweak our AMI.
+4. Route traffic to [[_API Gateway|API Gateway]], which powers our API.