CCL-813-Document Correction (#5)

* Modified to add the aws connection and the services to be monitored.

* Added the gitignore.

* Removed the commented out block from the variables file.

* Modified to handle multiple aws connections and fine grained metrics within each monitored service.

* Updated the README with the input details.

* Corrected the formatting within the table.

* Upadted the formatting within the table.

* Included the API url in the default metrics.

* Modified to improve the readability.

* Corrected the documentation.

README.md

@@ -4,7 +4,7 @@ This terraform module is used to create Dynatrace environment specific resources
 
 ## Metrics to monitor
 
-By default, services defined in the [default\_DT\_Metrics.yaml](default_DT_Metrics.yaml) will be monitored on all the aws connections specified in the input (from the terragrunt repo). 
+By default, services defined in the [default\_metrics.yaml](default_metrics.yaml) will be monitored on all the aws connections specified in the input (from the terragrunt repo). 
 
 This set of services can be _topped up_ or _completely replaced_ by including/altering relavant sections as specified in the https://github.com/UKHomeOffice/core-cloud-dynatrace-terragrunt documentation.
 
@@ -29,7 +29,7 @@ No modules.
 
 | Name | Description | Type | Default | Required |
 |------|-------------|------|---------|:--------:|
-| <a name="input_aws_connections"></a> [aws\_connections](#input\_aws\_connections) | A map of AWS Connections to create. The key is the name of the connection. | <pre>map(object({<br/>    account_id = string<br/>    role_name  = string<br/>    optional_services_top_up = map(object)<br/>    optional_exclusive_services = map(object)<br/>}))</pre> | `{}` | no (Both the the `optional_services_top_up` and `optional_exclusive_services` can either be empty or completely omitted.)|
+| <a name="input_aws_connections"></a> [aws\_connections](#input\_aws\_connections) | A map of AWS Connections to create. The key is the name of the connection. | <pre>map(object({<br/>    account_id = string<br/>    iam_role  = string<br/>    optional_services_top_up = map(object)<br/>    optional_exclusive_services = map(object)<br/>}))</pre> | `{}` | no (Both the the `optional_services_top_up` and `optional_exclusive_services` can either be empty or completely omitted.)|
 
 ## Outputs