Jupyter Notebook with corrupt cells

I am taking the Linear Algebra for Machine learning course, I tried to submit the Programming Assignment on Single Perceptron Neural Networks for Linear Regression but the Jupyter Notebook has a corrupt cell on exercize 6 and when I submit it the whole notebook is basically invalidated, I have attached a screenshot for the corrupt cell. Please help me clear the notebook so that i can resubmit, currently when I go resubmit my notebook it shows my work as saved but still contains the corrupt cell shown in the screenshot. I look forward to hearing back from you

It turns out to be pretty easy to do this yourself. Please see topic B.5 on the MLS FAQ Thread. If that thread is new to you, there are lots of other helpful topics there. Definitely worth scanning through to get a sense for all that is there.

Thank you for the great link , figured it out