Exercise #8: 'acc' key should be 'accuracy'

[agonzalezro]

The snippet in exercise #8 is trying to access the key 'acc' that doesn't
exist in keras.models.Sequential().fit(...).history. It should be accessing
'accuracy' instead.

[agonzalezro]

I am having the same problem but the other way around (instead accuracy it's expecting acc) and the model seems to be Sequential again so I don't understand what's going on.

Could it be using different versions of keras?

[agonzalezro]

Sorry for bothering again, but the last exercise (#10) has the same problem that the one shown in this PR: acc should be accuracy. So, summarising:

• this PR is for exercise Fixing csv import #8 and expects acc to be accuracy.
• exercise Update 07. Advanced SVMs - Python.ipynb #9 expects accuracy to be acc.
• and finally exercise Hotfix/neural networks introduction python update.patch #10 expects acc to be accuracy.

BTW, I forgot to mention that I am running the exercises in Microsoft Docs webs and not locally, so I am using the versions provided by your Jupyter notebooks.

Thanks!