docs: fill in empty README.md

[Copilot]

The README.md contained only a bare title with no useful content.

Changes

• Description – What QuiMSonde does and its origin (based on Santory's QuiMObserve)
• Features – Auto-recording of espionage reports, stats analysis, pagination, per-user config, QMO import, custom search links, Xtense 2 integration
• Prerequisites – OGSpy ≥ 3.3.2, Xtense 2 recommended
• Install / Update / Uninstall – Step-by-step instructions for each lifecycle operation
• Links – Forum, ticket tracker (HTTPS URLs; removed hardcoded reporter=Sylar from new-ticket URL)
• Author – Credit to Sylar and Santory

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud