add install Xsstrike Manual

[darkb0ts]

What does it implement/fix? Explain your changes.

Updated the README to improve clarity and ease of installation for users.

Where has this been tested?

Python Version: Python 3.11.2 Operating System: Window 10

Does this close any currently open issues?

Does this add any new dependency?

No

Does this add any new command line switch/option?

Any other comments you would like to make?

Some Questions

• [ No] I have documented my code.
• [ Yes] I have tested my build before submitting the pull request.