How may I put a custom message in checkout page

Dear

Greetings!

I want to put a custom message in my checkout page like this:
“Please be aware that displayed prices are exclusive of all tax which may be payable in relation to your order. To keep things simple, we’ll calculate local taxes and charges at checkout so there are no surprises when your parcel arrives. The currency selector is to be used as a guide only and in all cases you will still be charged in USD.”
How may I do it?

Thanks