docs(arabot): list all commands

docs/COMMANDS.md

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+# Commands for the bot
+
+## Moderation
+
+### Sus
+This command stores notes on users that could be information on the user
+or anything that is not serious enough for a warning.
+
+#### Classic Commands
+- `?sus <user> <note>` Add a note to the user
+
+#### Application Commands
+
+- `/sus add <user> <note>`
+- `/sus view <user <note>`
+- `/sus remove <id>`
+- `/sus purge <user>`
+
+## Coordinator Only
+
+### Diversity Team
+
+- `/diversity toggleopen`
+
+### Events Team
+
+- `/stagehost`
+
+### Mentor Team
+
+- `/vegancurious`
+
+### Verification Team
+
+- `/purgeverifying`
+
+## Utilities
+
+- `/ping`
+
+## Fun Commands
+
+- `/1984`
+- `/happy`
+- `/hug`
+- `/kill`
+- `/poke`
+- `/sad`
+- `/shrug`