I get an error when running git clone to extract the code. The error message: `error: invalid path 'Chapter 5/01 - A bit of history: zope.interface/colliders_interfaces.py'` Please see screenshot attached. 
I get an error when running git clone to extract the code. The error message:
error: invalid path 'Chapter 5/01 - A bit of history: zope.interface/colliders_interfaces.py'Please see screenshot attached.