Add OpenDigger MCP server to community servers

[Neilblaze]

Description

Adding OpenDigger MCP server to the community servers list in README.md.

Server Details

• Server: OpenDigger MCP Server (new entry)
• Changes to: Community servers documentation section

Motivation and Context

This adds the OpenDigger MCP server (https://github.com/X-lab2017/open-digger-mcp-server) to the community servers list, making it discoverable to users who wish to interact with OpenDigger's MCP server using natural language. The server allows querying advanced repository analytics and provides insights through various tools and prompts.

How Has This Been Tested?

• ✅ Tested with Claude Desktop using MCP Inspector
• ✅ Tested with Cursor, VSCode, and Windsurf
• ✅ All tools validated and working

Breaking Changes

None — this is a documentation update only.

Types of changes

• 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 change)
• Documentation update

Checklist

• I have read the MCP Protocol Documentation
• My changes follows MCP security best practices
• I have updated the server's README accordingly
• I have tested this with an LLM client
• My code follows the repository's style guidelines
• New and existing tests pass locally
• I have added appropriate error handling
• I have documented all environment variables and configuration options

Additional context

• License: Apache-2.0
• Installation doc: open-digger-mcp-server//INSTALLATION.md

Note

Server supports all 21 OpenDigger metrics. For more, follow the features section in the docs.

[Neilblaze]

cc'ing @birdflyi & @frank-zsy for greater visibility.

[olaservo]

Thanks for your contribution to the servers list. This has been merged in this combined PR: #2913