confusion to project structure when referencing your official site https://aws-ia.github.io/standards-terraform/

[es-cs1]

Hi, love your site https://aws-ia.github.io/standards-terraform/

A question on the structure of your project....
In your site you have this section: https://aws-ia.github.io/standards-terraform/#module-structure
which shows the following section

However, in this repo, there is no 'modules' directory.
Is there a particular reason for the discrepancy?

Thanks!