Update ECS install and upgrade instructions (#63)

In Galileo, Console now generates the Defender task definition for you

Author: iansk

admin_guide/howto/configure_ecs_loadbalancer.adoc

@@ -3,16 +3,18 @@
 [.task]
 == Configure an AWS Classic Load Balancer for ECS
 
-This guide shows you how to configure a Classic Load Balancer in AWS for Prisma Cloud Console.
+Configure an AWS Classic Load Balancer for accessing Prisma Cloud Console.
 Console serves its UI and API over HTTPS on port 8083, and Defender communicates with Console over a websocket on port 8084.
 You'll set up a single load balancer to forward requests for both port 8083 and 8084 to Console, with the load balancer checking Console's health using the _/api/v1/_ping_ endpoint on port 8083.
 
+For the complete install procedure for Prisma Cloud on Amazon ECS, see https://docs.twistlock.com/docs/latest/install/install_amazon_ecs.html[here].
+
 [.procedure]
 . Log into the AWS Management Console.
 
 . Go to *Services > Compute > EC2*.
 
-. In the left menu, go to *LOAD BALANCING > Load Balancers*.
+. In the left menu, go to *Load Balancing > Load Balancers*.
 
 . Create a load balancer.
 
@@ -44,18 +46,18 @@ You'll set up a single load balancer to forward requests for both port 8083 and
 
 .. Click *Next Configure Security Settings*.
 +
-* ignore the warning and click *Next: Configure Health Check*
+* Ignore the warning and click *Next: Configure Health Check*
 
 .. Use the following health check configuration:
 +
 * *Ping Protocol*: HTTPS
 * *Ping Port*: 8083
 * *Ping Path*: /api/v1/_ping
-* Use default settings for *Advanced Details*
+* For *Advanced Details*, accept the default settings.
 
 .. Click *Next: Add EC2 Instances*
 +
-* Do not select any instance
+* Do not select any instances.
 
 .. Click *Next: Add Tags*.
 +
@@ -66,6 +68,4 @@ You'll set up a single load balancer to forward requests for both port 8083 and
 
 .. Review your settings and select *Create*.
 
-.. Review created load balancer and record its *DNS Name*
-+
-For the complete install procedure on Amazon ECS environment, follow the steps in https://docs.twistlock.com/docs/latest/install/install_amazon_ecs.html[Install Prisma Cloud on Amazon ECS].
+.. Review the load balancer that was created and record its *DNS Name*.