Update social-media.csv

Created by: TrystanOakley

Added the following lifters NOT IN ALPHABETICAL ORDER (added them all below Zahir): @sstangl

Luke Poli Dusin Slepica Justin Music Chris Crisman Kevin McHugh Siim Rast Bryan Hartsel Tyrel Williams Rudy Harbin Jeff Barnes Patrick Vincent Maguire Andy Hargreaves Didzis Zarins Dan Neundorf Josh Tait Melissa Barber