Update requirements.txt

Merge pull request adeyosemanputra#170 from RupakBiswas-2304/master

minor fixes in sans section

Merge pull request adeyosemanputra#169 from adeyosemanputra/all-contr…

…ibutors/add-whokilleddb

docs: add whokilleddb as a contributor for code

Update README.md

Update requirements.txt

Update requirements.txt

Merge pull request adeyosemanputra#39 from pwned-17/master

A9: Modifed Writeup and Lab Updated.