[Documentation] feat comprehensive CONTRIBUTING.md and Demo movie for open-source development

CONTRIBUTING.md

@@ -0,0 +1,235 @@
+## **Contributing Guidelines**
+
+### Getting Started
+1. Fork the repository
+2. Clone your fork locally
+3. Create a feature branch
+4. Make your changes
+5. Test your changes
+6. Submit a pull request
+
+### Code Standards
+- Follow existing code style
+- Write meaningful commit messages
+- Include tests for new features
+- Update documentation as needed
+
+### Community Guidelines
+- Be respectful and inclusive
+- Provide constructive feedback
+- Help others learn and grow
+- Follow the project's Code of Conduct
+
+
+
+## **Branch Strategy**
+
+### Git Flow Based Branch Strategy
+
+#### Main Branches
+- **`main`** (or `master`): Production-ready code
+- **`develop`**: Integration branch for development
+- **`feature/*`**: New feature development
+- **`hotfix/*`**: Critical bug fixes
+- **`release/*`**: Release preparation
+
+#### Branch Naming Convention
+
+```
+feature/issue-number-brief-description
+hotfix/issue-number-brief-description
+release/version-number
+```
+
+**Examples:**
+```
+feature/123-user-authentication
+hotfix/456-login-bug-fix
+release/1.2.0
+```
+
+#### Workflow
+
+1. **Feature Development**
+   ```bash
+   # Create feature branch from develop
+   git checkout develop
+   git pull origin develop
+   git checkout -b feature/123-user-authentication
+
+   # After development, create PR to develop
+   ```
+
+2. **Hotfix**
+   ```bash
+   # Create hotfix branch from main
+   git checkout main
+   git pull origin main
+   git checkout -b hotfix/456-critical-bug
+
+   # After fix, create PRs to both main and develop
+   ```
+
+3. **Release**
+   ```bash
+   # Create release branch from develop
+   git checkout develop
+   git pull origin develop
+   git checkout -b release/1.2.0
+
+   # After release preparation, create PR to main
+   ```
+
+---
+
+## **Pull Request Guidelines**
+
+### PR Title Format
+
+```
+type(scope): brief description
+
+Types:
+- feat: new feature
+- fix: bug fix
+- docs: documentation update
+- style: code formatting
+- refactor: code refactoring
+- test: adding/updating tests
+- chore: miscellaneous tasks
+```
+
+**Examples:**
+- `feat(auth): add social login functionality`
+- `fix(api): resolve user info retrieval bug`
+- `docs(readme): update installation guide`
+
+### PR Description Guidelines
+
+#### 1. Summary of Changes
+- Clearly describe what was changed
+- Explain why this change was necessary
+
+#### 2. Testing Instructions
+- Provide methods to verify the changes
+- Include screenshots or GIFs for UI changes
+
+#### 3. Related Issues
+- Link related issues: `Closes #123`, `Fixes #456`
+
+#### 4. Checklist
+- [ ] Code follows the project's style guidelines
+- [ ] Self-review completed
+- [ ] Appropriate tests added
+- [ ] Documentation updated (if needed)
+
+---
+
+## Pull Request Template
+
+```markdown
+## Summary of Changes
+<!-- Briefly describe what this PR changes -->
+
+## Type of Change
+<!-- Please check the type of change your PR introduces -->
+- [ ] Bug fix (non-breaking change which fixes an issue)
+- [ ] New feature (non-breaking change which adds functionality)
+- [ ] Breaking change (fix or feature that would cause existing functionality to not work as expected)
+- [ ] Documentation update
+- [ ] Code refactoring
+- [ ] Performance improvement
+- [ ] Test addition
+
+## Related Issues
+<!-- Link any related issues -->
+Closes #issue-number
+
+## Testing Instructions
+<!-- Describe how to test this change -->
+1. 
+2. 
+3. 
+
+## Screenshots (if applicable)
+<!-- Add before/after screenshots for UI changes -->
+
+## Checklist
+<!-- Check off completed items -->
+- [ ] My code follows the style guidelines of this project
+- [ ] I have performed a self-review of my own code
+- [ ] I have commented my code, particularly in hard-to-understand areas
+- [ ] I have made corresponding changes to the documentation
+- [ ] My changes generate no new warnings
+- [ ] I have added tests that prove my fix is effective or that my feature works
+- [ ] New and existing unit tests pass locally with my changes
+
+## Additional Notes
+<!-- Any additional information for reviewers -->
+```
+
+---
+
+## Code Review Guidelines
+
+### For Reviewers
+
+#### Review Checklist
+1. **Functionality**: Does the code work as intended?
+2. **Readability**: Is the code easy to understand?
+3. **Performance**: Are there any performance concerns?
+4. **Security**: Are there any security vulnerabilities?
+5. **Testing**: Are appropriate tests included?
+
+#### Feedback Guidelines
+- Provide **specific and constructive** feedback
+- Include **positive feedback** for good parts
+- Use **suggestion format**: "What do you think about...?"
+- Provide **code examples** when possible
+
+### Review Priority
+1. **Critical**: Bugs, security issues, performance problems
+2. **Major**: Design issues, readability problems
+3. **Minor**: Style, naming conventions
+
+### Review Completion Criteria
+- [ ] All Critical/Major issues resolved
+- [ ] Tests passing
+- [ ] Documentation updated
+- [ ] At least one approval from maintainer
+
+---
+
+## Commit Message Convention
+
+### Format
+```
+type(scope): subject
+
+body
+
+footer
+```
+
+### Types
+- **feat**: A new feature
+- **fix**: A bug fix
+- **docs**: Documentation only changes
+- **style**: Changes that do not affect the meaning of the code
+- **refactor**: A code change that neither fixes a bug nor adds a feature
+- **perf**: A code change that improves performance
+- **test**: Adding missing tests or correcting existing tests
+- **chore**: Changes to the build process or auxiliary tools
+
+### Examples
+```
+feat(auth): add OAuth2 integration
+
+Add support for Google and GitHub OAuth2 providers.
+This allows users to sign in with their existing accounts.
+
+Closes #123
+```
+
+---
+

README.md

@@ -25,6 +25,9 @@ OpenContext is an enterprise-grade RAG (Retrieval-Augmented Generation) system d
 - **Production Ready**: Docker Compose deployment with monitoring and logging
 - **Developer Friendly**: MCP protocol integration for AI assistants like Cursor
 
+### Demo 
+[![demo](https://github.com/user-attachments/assets/55482003-4bb8-4316-bea7-200ecf5bf92a)](https://github.com/user-attachments/assets/55482003-4bb8-4316-bea7-200ecf5bf92ae)
+
 ## Architecture
 
 ```mermaid