Add CIS v1.2.0 section 6.3 - 6.7 docs.

[rajlearner17]

Is your feature request related to a problem? Please describe.
CIS section 2 benchmark and controls should have supporting documents.

Describe the solution you'd like
Add documents for section 2 benchmark and controls.

Describe alternatives you've considered
N/A

Additional context
Add any other context or screenshots about the feature request here.