Move default branch from "master" -> "main"

[jsignell]

@jrbourbeau and I are in the process of moving the default branch for this repo from master to main.

• Changed in GitHub
• Merged PR to change branch name in code. (Updates for new main default branch #138)

What you'll see

Once the name on github is changed (the first box above is Xed, or this issue closed), when you try to git pull you'll get

Your configuration specifies to merge with the ref 'refs/heads/master'
from the remote, but no such ref was fetched.

What you need to do

First: head to your fork and rename the default branch there
Then:

git branch -m master main
git fetch origin
git branch -u origin/main main

[jakirkham]

I think this is done, but please double check 🙂

[jakirkham]

Also submitted PR ( #140 ) to switch a scikit-learn link to use main since that is now an option

[jrbourbeau]

Closing as we've finished the switch to main here. Thanks @jsignell @jakirkham