optimize Help-Command

[zerobot-issues]

Add MarkDown-Files into the GitHub-Repository, so you can make a list of commands in groups. For example: Group A = General, Group B = Fun, Group C = Mod (Issue created by Discord-user byZero#4840)

[therealmistericraft]

I recommend using the GitHub wiki instead.

[Ruwen Hohnholz]

thats right, my head is hurting now cause I was putting it on my desk to hard :)

[Ruwen Hohnholz]

hey :) @therealmistericraft i optimized the _help command, how about that?