default branch changing to main

[shiffman]

I am doing a little bit of cleanup on this repo as related to my Intro to ML course, specifically around example pre-trained charRNN models. I have updated the default branch to main. Before I delete the deprecated branch, I am wondering if there are any elements of the code that load models or data files from this repo that might break? @bomanimc or @joeyklee, let me know if you know of anything.

[joeyklee]

Hi! I'm not certain, but we will likely have to update where we point our p5 web editor updater script (one day I'll get to this I promise!) and there may be some examples that may break, but we can handle it as those come up.

As long as the build is building and generally our tests are passing, then I think it is ok. We have some house cleaning to do, but we're on our way towards a more maintainable system :)