Add Smithery to README

[calclavia]

This PR makes two changes to the README.

1. Adds installation instructions to automatically install Video Editor for Claude Desktop using Smithery CLI. This makes it easier for users to install the MCP.
2. Adds a badge to show the number of installations from Smithery: https://smithery.ai/server/video-editor-mcp

Let me know if any tweaks have to be made!

[burningion]

Thanks for the contribution!

I don't think as written it will actually work without an API key being passed in. I'm happy to give you access to the API so you can have an API key to test with.

[calclavia]

Thanks for the contribution!

I don't think as written it will actually work without an API key being passed in. I'm happy to give you access to the API so you can have an API key to test with.

The configuration I created is based on your README. It looks like this:

new StdioClientTransport({
  "command": "uvx",
  "args": [
    "video-editor-mcp",
    "YOUR_API_KEY_HERE"
  ]
}))

If that's not correct, it'd be great if you could let me know how to adjust it. Thanks!