Add Masquerade MCP; privacy firewall

[pettod]

Description

Added Masquerade MCP to README to the "Community Servers" section.

Server Details

Motivation and Context

This new MCP server allows people to query their sensitive PDF documents with LLMs without privacy concerns.

How Has This Been Tested?

This has been tested thoroughly with Claude desktop app. The videos in the repository's Readme show that.

Breaking Changes

Yes, claude_desktop_config.json needs to be updated.

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

[olaservo]

Thanks for your contribution to the servers list. This has been merged in this combined PR: #2370

This is a new process we're trying out, so if you see any issues feel free to re-open the PR and tag me.