Add Morningstar MCP Server

[akesiraju]

Add Morningstar MCP Server to the README

Description

Morningstar MCP server to interact with Morningstar Research and Editorial content.

Server Details

• Server

Motivation and Context

Morningstar data is currently available through APIs, morningstar data python package, etc.
The MCP Server allows Morningstar users to directly post their queries about finance, investing, portfolio, etc using MCP

How Has This Been Tested?

An example client to connect to the MCP server using both stdio and http

Breaking Changes

No

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