Add LINE MCP server to community servers list

[amornpan]

Description

Adding LINE MCP server to the community servers list in README.md. This is a new Python implementation for LINE Bot integration that enables Language Models to communicate with LINE messaging platform.

Server Details

• Server: New community server (LINE)
• Changes to: README.md only (adding to community servers list)

Motivation and Context

This MCP server allows AI assistants to interact with LINE Bot messages, expanding the ecosystem of connectivity options for LLMs. It provides a standardized interface for reading and analyzing LINE conversations, enabling new use cases for AI in messaging platforms.

How Has This Been Tested?

The server has been tested with Claude Desktop as an MCP client, successfully reading and analyzing messages from LINE Bot conversations. It handles various message types including text, sticker, and image messages.

Breaking Changes

None. This is just adding a reference to the community servers list.

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

The LINE MCP server provides asynchronous operation, comprehensive logging, webhook event handling, and proper LINE message signature validation. It's designed to work with Claude Desktop and can be configured with environment variables for secure access. The server repository includes detailed documentation and examples.