adding profile and run instructions

Author: digitalghost-dev

docs/Infrastructure_Guide/terraform.md

@@ -30,13 +30,42 @@ After manually creating the resources in the [AWS](aws.md) section, [terraformer
 Terraformer acts as a "reverse Terraform" tool where it can read from created resources on AWS. 
 Although the output can sometimes be a bit verbose, it's an easy way to capture everything to create reproducible builds.
 
+### Profile
+Before installing Terraformer, a profile from AWS will need to be configured under `~/.aws/credentials` which is `TOML` like file.
+
+Configure the `terraform-user` profile from [1. AWS](aws.md#iam) to look like this:
+
+```toml
+[terraform-user]
+aws_access_key_id = <ACCESS_KEY_ID>
+aws_secret_access_key = <SECRET_ACCESS_KEY>
+```
+
+To retrieve these options, head to IAM > Users > teraform-user > Security Credentials tab
+
 ### Install
 * [Install Guide](https://github.com/GoogleCloudPlatform/terraformer?tab=readme-ov-file#installation)
 
-Install Terraformer:
+Install Terraformer on macOS:
 
 ```bash
 brew install terraformer
 ```
 
+### Run
+
+Once Terraformer is installed, run the tool to start generated `.tf` files.
+
+For example, to retrieve the build for an RDS instance, run:
+
+```bash
+terraformer import aws --regions us-west-2 --resources rds --profile terraform-user
+```
+
+Where:
+* `--regions `is where the RDS instance is located.
+* `--resources` is the resources under RDS
+* `--profile` is the `terraform-user` profile from `~/.aws/credentials`
 
+After running this command, Terraformer will create the `.tf` files under `~/generated`.
+The path to where these will be created can be changed with the `--path-output` flag.