Describe the Deployed Architecture, and how this has been deployed

### What would you like to be added?

It would be nice in the intro module to have a section describing with a schema what is created in the account, how it was created, maybe how to find the Terraform code to reproduce on their own..

In the other labs when we say "this has already be created for you", make a link to this section if customer want more details on it

### Why is this needed?

For customers to have better understanding on what is behind the scene, and if they want to reproduce the architecture

Start by locating the intro module and the other labs that say the environment has already been created. Review the Terraform code and document the deployed account architecture with a schema, creation details, and reproduction guidance, then link to that section from the relevant labs.

Written by the indexing model from the issue text.