Most of them are just typos or funny punctuation, but this also adds
the word "above" after "You and Humbug Tutorial Bot" since otherwise
the user might try to click the text in the message body and be
confused.
(imported from commit dccaf4acd24db713acab261440f0a9d03860e0f4)
Here I have a sketchy but functional framework for dealing with
all of the async stuff that a tutorial requires, and an early
draft of what such a tutorial might look like.
I could probably go and remove the first-run message, but I'll
keep it around for now in the unlikely event that something I
haven't anticipated goes wrong in starting up the tutorial.
(imported from commit de9779a66a1b3fe790082decb324c90ec180b39b)