update changelog
update changelog

samuelsan/YelpBot,DJ1K1/botkit,howdyai/botkit,DJ1K1/botkit,howdyai/botkit,EliKrumholz/botkit,acrollet/botkit,dhulser/slack-reporting-bot,howdyai/botkit,ouadie-lahdioui/botkit,howdyai/botkit,healthchatnow/hcn