Missing information in documentation about the `ipcMain.on('subscribe')` handler part

[Lin-TY-Yang]

Hi, thank you for the great work on this package!

While integrating the package, I found that the following code is required during the window creation phase for proper functionality:

ipcMain.on('subscribe', async (state: unknown) => {
	if (mainWindow?.isDestroyed()) return
	mainWindow?.webContents?.send('subscribe', state)
})

However, this requirement is not clearly mentioned in the documentation or demonstrated in the example projects. Including this snippet or noting its necessity would be very helpful for users trying to get started.

Appreciate your efforts—thanks again!