Discord text formatting is a way to enhance your text while chatting with someone on discord. You just have to remember some shortcuts so that you can use them anytime.
Bold, italics, and strikethrough are the most used formatting in discord right now. To strikethrough your text in discord, you have to put your text into four tildes (~~Your Text~~), just like this.
Read more: https://getassist.net/discord-text-formatting/