[BUG] Fix the docs. You use --header to add an authorization header, not -e

Question

This page:
https://docs.anthropic.com/en/docs/claude-code/mcp

Says:
```
Example: Adding an HTTP server with authentication header
claude mcp add --transport http secure-server https://api.example.com/mcp -e Authorization="Bearer your-token"
```

Which is wrong. The syntax is: 
```
claude mcp add --transport http secure-server https://api.example.com/mcp --header "Authorization: Bearer your-token"
```
Please fix asap to save many others much time. Thanks for a great product.