Make sure to start with an ampersand, finish with a semi-colon, and use no spaces between the ampersand and semi-colon
Here’s how you can embed card suit symbols for hearts, diamonds, spades, and clubs directly into your text. The cards can be copy and pasted, printed, and viewed on any device, and it is pure text. In our recent Continuation Bet article we show cards in this highly readable way: How to use card suit symbols (♥♦♠♣) on your computer