Ensure testing docs are accurate

[Panadero1]

What MVP does your issue request work on?

• [ ] Physics based dice roller
• [ ] GM customization options to all input
• [ ] Create Exploration or Encounter modes
• [ ] Add players/NPCS/Beasts/Shops
• [ ] Integrated search engine
• [ ] Notes Feature
• [x] Documentation & Automation Tools
• [x] Testing

Describe the solution you'd like Read through and update testing documentation to be accurate

Describe alternatives you've considered N/A

Additional context https://github.com/nigini/SWEng/blob/main/project/07_project_r2.md