feat: add reference to slack notification plugin
feat: add reference to slack notification plugin

Cellington1/Status,labianchin/WatchMen,iloire/WatchMen,labianchin/WatchMen,plyo/watchmen,iloire/WatchMen,Cellington1/Status,plyo/watchmen,iloire/WatchMen,Cellington1/Status,corinis/watchmen,corinis/watchmen,plyo/watchmen,corinis/watchmen,labianchin/WatchMen