fix: MCP support for Kilo Code

[ronnyskog]

The suggested MCP configuration in docs do not work in Kilo Code's global CLI configuration file (kilo.json)

This is a working version:

"token-saver-mcp": {
  "type": "local",
  "command": ["npx", "-y", "token-saver-mcp"],
  "enabled": true
}

Please update the documentation.