fixing the image src
thanks @olasd
Replacing cuddles ascii art with the cuddles drawing, restoring hy logo
We should introdeuce people to the tutorial before we toss them at hacking
Move TODO from being an actual block of visible text to a comment

This is cleaner and more respectable :)
Adding in @aldeka 's cuddles image!
I'm an idiot, Sorry, @aldeka
Permit macros to return constants
Forgot boolean constants..
style fixes