hi!! sorry about the late response, i dont check this acc a ton haha. in case you still need help, the main thing i would recommenced is going to fontawesomes website and searching for the icon you'd like—they'll give you a code you can directly copy. replace the entire < i class="fas fa-pencil-ruler" /> with the code it gives you, and it should work! if you'd like a more in-depth explanation i'd be happy to break down how the code itself functions ^^