To do this, you have to use the icon tag. Use bronyproud1plz (https://www.deviantart.com/bronyproud1plz) & bronyproud2plz (https://www.deviantart.com/bronyproud2plz) on the first line, then bronyproud3plz (https://www.deviantart.com/bronyproud3plz) & bronyproud4plz (https://www.deviantart.com/bronyproud4plz) on the second line. When finished, it looks like this:
~bronyproud1plz (https://www.deviantart.com/bronyproud1plz):iconbronyproud2plz:
:iconbronyproud3plz::iconbronyproud4plz:
Original art by Sound-Resonance (https://www.deviantart.com/sound-resonance) here: http://sound-resonance.deviantart.com/art/Bronies-Welcome-202765903