Update Readme proposal

[radomirchev]

Update readme.md:

Prerequisites

1. VS Code 1.99+ (Help → About to verify)
2. GitHub Copilot Chat extension installed

Setup

1. Add to .vscode/mcp.json (include "type": "stdio")
2. Save the file (Ctrl+S)
3. MCP: List Servers → confirm server appears
4. Click Start or reopen VS Code
5. Open Copilot Chat → Agent mode → verify tools listed

Troubleshooting

• Server not appearing: check "type": "stdio" is present, file is saved
• 404 on npx: package is "igniteui-theming", not "@igniteui/theming-mcp"
• Terminal hangs when running command directly: expected behavior, use MCP Inspector to test in isolation