Proper way to send notice to pay or quit

[John Woodhouse]

Hello

I’m curious about what’s the proper verbiage to use in a notice to pay or quit. I assume it would go something like this:

As of the writing of this letter, you are in default of your rent payment. You have three days to pay or move out.

Thank you

Can it really be as simple as that or is there anything else I’m missing? 

Thank you for your input!