add modifier as __ for some images

[kamilsk]

• https://github.com/kamilsk/octopus/blob/master/img/character/hockey_player_red.png
• https://github.com/kamilsk/octopus/blob/master/img/character/hockey_player_white.png
• https://github.com/kamilsk/octopus/blob/master/img/character/gorshok_blue.png
• https://github.com/kamilsk/octopus/blob/master/img/character/gorshok_red.png
• https://github.com/kamilsk/octopus/blob/master/img/character/shopaholic_man.png
• https://github.com/kamilsk/octopus/blob/master/img/character/shopaholic_woman.png