Improve Project Documentation & Contributor Onboarding #355

Description:
Jarvis is an impressive AI-based virtual assistant with features like automation, role-based access, and Streamlit authentication. However, for new contributors and first-time users, understanding the project structure and getting started can be a bit confusing.

The repository contains many powerful ideas (AI models, automation, admin tools, auth, etc.), but clearer documentation and onboarding guidance would make it much easier for contributors to start contributing confidently.

Suggested Improvements:

• Add a clear “Getting Started” section with setup steps and dependencies
• Provide a project architecture overview explaining modules like automation, auth, admin tools, and AI models
• Include example commands or use cases for Jarvis (voice/text)
• Clarify contribution guidelines and PR expectations with examples
• Add screenshots or a short demo of the Streamlit UI & authentication flow

Why this matters:
Better documentation will help beginners, open-source contributors, and program participants (GSSoC, Hacktoberfest, IWOC, etc.) understand the project faster and contribute more effectively.

Thank you for maintaining such a helpful open-source project and supporting the contributor community! 🚀