Fix: pong.playplay.io is no more, it's now bots.playplay.io. [ci skip]
Fix: pong.playplay.io is no more, it's now bots.playplay.io. [ci skip]

dblock/slack-gamebot,hjdarnel/slack-gamebot,hjdarnel/slack-gamebot,michael-pratt/slack-gamebot,dblock/slack-gamebot,hjdarnel/slack-gamebot,AlexLaviolette/slack-gamebot,hjdarnel/slack-gamebot,michael-pratt/slack-gamebot,AlexLaviolette/slack-gamebot,michael-pratt/slack-gamebot,AlexLaviolette/slack-gamebot,AlexLaviolette/slack-gamebot,dblock/slack-gamebot,michael-pratt/slack-gamebot,dblock/slack-gamebot