please help !

Ты mean like Italics and bold? Easy peasy, I'll Показать you.

For italics, Ты put an 'i' in between these two <> at the beginning of whatever Ты what to have in italics, and this '/i' in between these two <> at the end. I can't actually type it because it doesn't Показать up when Ты Отправить your response.

For bold, Ты do the same but with a 'b' and for underlining Ты do it with a 'u'.

The end product looks like this

или this

или this.

i am not sure but may be they use word pad to change the fonts and then paste the lines