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Delete Pentesting-Playbook.md

Update Pentesting-Playbook.md

Update Pentesting Playbook with new enumeration commands

Revise enumeration section with nmap scanning command

Update header format in Pentesting Playbook

Simplify header formatting in Pentesting playbook

Update print statement from 'Hello' to 'Goodbye'

Fix typo in file name 'Enumeration'

Add network scanning commands to Enuemeration

Revise README formatting and add content sections

Revise README for Pentesting Playbook

Initial commit