add an example for homebrew style file upload

[SamYuan1990]

Motivation and Context

an example for modelcontextprotocol/modelcontextprotocol#1306 from modelcontextprotocol/modelcontextprotocol#1522
address #1590

How Has This Been Tested?

see document as readme of this PR.

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 Documentation
• My code follows the repository's style guidelines
• New and existing tests pass locally
• I have added appropriate error handling
• I have added or updated documentation as needed

Additional context

[maxisbey]

please don't commit PDFs to this repo, they're large binary files and often considered not secure to open unless trusted

[SamYuan1990]

ok, I will remove the pdf file this week. it's mid night my local time today.