Update manage-resource-groups-portal.md

Azure Administrator certification exam asks about these but they haven't been mentioned anywhere in the doc (some of them are scattered and requires digging). So, I've consolidated and added the following:

"The resource group stores metadata about the resources, for example:
- Metrics blade provides metrics information (CPU, resources) to users. 
- Deployments blade shows all the details related to a deployment, such as the name, status, date last modified, etc.
- Policy blade provides information related to the policies enforced on the resource group.
- Diagnostics settings blade provides the ability to diagnose errors or review warnings. "

Author: azarboon

articles/azure-resource-manager/management/manage-resource-groups-portal.md

@@ -16,7 +16,13 @@ Learn how to use the [Azure portal](https://portal.azure.com) with [Azure Resour
 
 A resource group is a container that holds related resources for an Azure solution. The resource group can include all the resources for the solution, or only those resources that you want to manage as a group. You decide how you want to allocate resources to resource groups based on what makes the most sense for your organization. Generally, add resources that share the same lifecycle to the same resource group so you can easily deploy, update, and delete them as a group.
 
-The resource group stores metadata about the resources. Therefore, when you specify a location for the resource group, you are specifying where that metadata is stored. For compliance reasons, you may need to ensure that your data is stored in a particular region. Note that resources inside a resource group can be of different regions.
+The resource group stores metadata about the resources, for example:
+- Metrics blade provides metrics information (CPU, resources) to users. 
+- Deployments blade shows all the details related to a deployment, such as the name, status, date last modified, etc.
+- Policy blade provides information related to the policies enforced on the resource group.
+- Diagnostics settings blade provides the ability to diagnose errors or review warnings. 
+
+Therefore, when you specify a location for the resource group, you are specifying where that metadata is stored. For compliance reasons, you may need to ensure that your data is stored in a particular region. Note that resources inside a resource group can be of different regions. 
 
 
 ## Create resource groups