Update README.md

Update main README and unify project names

Organize MQTT hardening files and update README

Clean buffer overflow structure and clarify docs

Improve MQTT MITM layout and update README

Reorganize network scanning files and clean documentation

Refactor environment setup structure and simplify README

Add Lab 5: MQTT hardening with TLS and client certificate authentication

Add Lab 4: Buffer Overflow Attack with documentation and solution

Rename file in Lab 3 for clarity

Rename files in Lab 3 for clarity

Update task-02a-networks-and-protocols.md

Rename file for clarity

Add Lab 3: MQTT MITM attack with packet modification using Bettercap

Add Lab 2: Network scanning, traffic capture, and vulnerability analysis using Nmap and OpenVAS