Move talks into year-specific sub-directory

talks/2020/environments/Managing Environments.key

talks/2020/introduction/example_project/myscript.py

talks/2020/introduction/pytreat_intro.ipynb

talks/2020/introduction/pytreat_intro.md

talks/2020/matlab_vs_python/bloch/bloch.ipynb

talks/2020/matlab_vs_python/bloch/bloch.m

talks/2020/matlab_vs_python/fitting/fit_model.ipynb

talks/2020/matlab_vs_python/fitting/fit_model.m

talks/2020/matlab_vs_python/migp/MIGP.ipynb

talks/2020/matlab_vs_python/migp/concat_diag.png

talks/2020/matlab_vs_python/migp/demo_MIGP_NIFTI.m

talks/2020/matlab_vs_python/migp/matlab_MIGP.ipynb

talks/2020/matlab_vs_python/migp/python_MIGP.ipynb

talks/2020/matlab_vs_python/partial_fourier/data.mat

...20/matlab_vs_python/partial_fourier/partial_fourier.ipynb

...s/2020/matlab_vs_python/partial_fourier/partial_fourier.m

talks/2020/matlab_vs_python/rbf/play_rbf.ipynb

talks/2020/matlab_vs_python/rbf/play_rbf.m

talks/2020/multiprocessing/Multiprocessing.ipynb

talks/2020/nibabel_cifti/100307/T1w.nii.gz