Update ColabNotebook.ipynb

[chriseling]

fix notebook

[nkgilley]

Maybe you could do this in bash so you don't have to manually update this notebook when requirements update. I haven't tested this but maybe something like:

for req in `cat requirements.txt`; do
pip3 install $req
done

[kyleskom]

Ya I think there should be a better way to do this thats cleaner but going to merge for now to avoid having to deal with people asking why collar isn't working.