Resolve "Terraform module usage instructions are incorrect"

Merged Matt Kasa requested to merge 334327-terraform-module-usage-instructions-are-incorrect into master

What does this MR do?

Fixes the usage instructions for Terraform modules in the Infrastructure Registry.

Screenshots (strongly suggested)

Old (bug behavior)

Screen_Shot_2021-06-22_at_2.19.51_PM

New (fixed)

Screen_Shot_2021-06-22_at_2.28.09_PM

Does this MR meet the acceptance criteria?

Conformity

Availability and Testing

Related to #334327 (closed)

Edited by Matt Kasa