Add instructions to README about using with babun

[stadelmanma]

Add instructions to README about using with babun

[stadelmanma]

So far what is needed is adding the following to the babun ~/.zshrc file

# Append Anaconda directories to override python 2.7 in /usr/bin/
PATH="/cygdrive/c/{path to Anaconda3 directory}:$PATH"
PATH="/cygdrive/c/{path to Anaconda3 directory}/Scripts:$PATH"
PATH="/cygdrive/c/{path to Anaconda3 directory}/Library/bin:$PATH"
export PATH

#alias python3 to work interactively
alias python3="/cygdrive/c/{path to Anaconda3 directory}/python.exe -i"

Run this script to link Anaconda python to the expected python3

ln -s "/cygdrive/c/{path to Anaconda3 directory}/python.exe" "/usr/local/bin/python3"

[stadelmanma]

I'll also try to clean up and clarify the installation instructions, mainly adding a "For all Systems" step and instructing to install Anaconda for only yourself if possible to avoid needing admin rights.