Similar to #27 , there are: * two broken "first notebook" links in [part1_using_a_different_solver.ipynb](https://github.com/odlgroup/odlworkshop/blob/2d3144ada11296c5363baba726b1f581a265b087/code/part1_using_a_different_solver.ipynb) * a broken "above" link in [part1_tv_denoising.ipynb](https://github.com/odlgroup/odlworkshop/blob/2d3144ada11296c5363baba726b1f581a265b087/code/part1_tv_denoising.ipynb)