docs: simplify README by removing Quick Start and integration sections

[TonyCasey]

Summary by CodeRabbit

• Documentation
  • Streamlined README documentation, removing outdated sections to focus on essential setup and introduction information.

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[coderabbitai]

Caution

Review failed

The pull request is closed.

📝 Walkthrough

Walkthrough

The README file has been substantially condensed, removing sections on Quick Start, memory operations, Claude Code integration, hook configuration, MCP server details, and architectural diagrams. The introduction and installation instructions remain intact.

Changes

Cohort / File(s)	Summary
Documentation Consolidation README.md	Removed Quick Start, memory operations, Claude Code integration, hook configuration, MCP server details, and architectural diagrams sections; retained introduction and installation guidance.

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~2 minutes

✨ Finishing touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Post copyable unit tests in a comment
• Commit unit tests in branch readme-2

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_{Comment @coderabbitai help to get the list of available commands and usage tips.}

[Copilot]

Pull request overview

This PR simplifies the main README by removing detailed documentation sections and improving the project title formatting. The removed content (Quick Start examples, Claude Code integration details, MCP server setup, and architecture diagram) is already available in the comprehensive Getting Started Guide, making the README more concise while maintaining a clear pointer to full documentation.

Changes:

• Updated project title from "# git-mem" to "# Git Mem" for better readability
• Removed ~150 lines of detailed documentation (Quick Start, Claude Code Integration, MCP Server, Architecture sections)
• Streamlined README to focus on core value proposition and installation, with reference to detailed docs

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