Docs: Add Quickstart and MCP Security Glossary with Technique Links

[bochristopher]

Problem: README describes goals but lacks a hands-on quickstart for security teams/developers.
• Proposal:
1. Add “Quickstart” with steps: pick relevant tactics→map to your MCP tools→apply mitigations→run checks.
2. Add “Glossary” (Host, Server, Tool, OAuth AS, PoP/DPoP, scope, audience, context window, autonomous loop guard).
3. Link items to specific techniques (e.g., SAFE-T1102 Prompt Injection → mitigations X/Y/Z).
• Why: Improves adoption and standardizes terminology.
• Willing to submit PR.

References: Link to MITRE ATT&CK glossary as an example of terminology standardization.

[bishnubista]

@bochristopher I agree. It will be great if you can raise a PR. We need more contribution. Thanks!

[bochristopher]

PR is ready! Created comprehensive documentation as discussed: #70

Includes both the quickstart guide and security glossary with technique links as requested.

[arjunastha]

@bishnubista lets add Quickstart, Glossary section.