Revise exercise instructions and remove duplicate time estimate

Updated the document to clarify exercise instructions and remove duplicate estimated time.

Author: staleycyn

Instructions/Exercises/M08-Unit 3 Monitor a load balancer resource using Azure Monitor.md

@@ -21,9 +21,12 @@ The diagram below illustrates the environment you will be deploying in this exer
 
 ![Diagram illustrating the load balancer architecture that will be created in the exercise - includes load balancer, VNet, subnet, Bastionsubnet, and VMs](../media/3-exercise-monitor-load-balancer-resource-using-azure-monitor.png)
 
+
+## Estimated time: 55 minutes
+
 ## Job skills
 
- In this exercise, you will:
+ In this exercise, you:
 
 + Task 1: Create the virtual network
 + Task 2: Create the load balancer
@@ -39,7 +42,7 @@ The diagram below illustrates the environment you will be deploying in this exer
 + Task 12: View resource health
 + Task 13: Configure diagnostic settings
 
-## Estimated time: 55 minutes
+
 
 ## Task 1: Create the virtual network