Go Discord CTFTime.org reminder

Auto fetch ctf events from ctftime.org api to remind a channel on discord

Usage:

Chat on channel: @bot -help

@vinhjaxt

Name		Name	Last commit message	Last commit date
Latest commit History 2 Commits
README.md		README.md
build.cmd		build.cmd
command-handler.go		command-handler.go
command-parser.go		command-parser.go
common_test.go		common_test.go
cron.go		cron.go
ctftime.go		ctftime.go
main.go		main.go
run.cmd		run.cmd
run.sh		run.sh
screenshot.png		screenshot.png
setup.sh		setup.sh