README: add a community Docker MCP server

[ckreiling]

Description

Adds a Docker MCP server to the Community section of the README

Server Details

n/a

Motivation and Context

It can be tedious to spin up containers, even with a Docker Compose file.

An LLM is a powerful natural language interface for running containers, needing only a few words to orchestrate potentially many containers.

How Has This Been Tested?

All resources, tools, and prompts have been tested with both the Claude desktop app and the MCP Inspector.

Breaking Changes

n/a

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

n/a

[jspahrsummers]

Great, thanks!