Changed up the config

Just added an ASCII thing at the top to make it pretty
Since I'm not exactly helping with the coding of the arenas, I decided
to go over what we have with a fine toothed comb and make sure it looks
good when all the code to make it work is done!
New .yml file and a command to test it

Added the "strings.yml" folder to the group, which should be useable for
custom death/join/etc. commands when we get around to that

Also added /sbf test string to make sure I remember how to reference
that file