Do not find relevant code for few exercises

[Mr-Saikiran]

Chapter 8 Doesn't seem to have excercise files "Using Terraform CLI Commands (workspace and state) to Manipulate a Terraform Deployment"

[ischoll]

@Mr-Saikiran In my experience, Section 8 code is in the Section4 folder -> content-hashicorp-certified-terraform-associate-foundations/section4-hol1