Just a couple suggestions and some typos on the start.ipynb

[cassiebreviu]

1. You might want to point out that the * indicates processing and a number displays once the cell has completed execution.
2. For step one you might want to clarify that after I click launch I need to click import on the notebook to get to the start.ipynb notebook.
   a. Example: "Click the Launch button above. In the new page that opens click the “Import” button to import the notebook."
3. Typo: Without data we really can't do anythin with machine learning
   a. Should be anything
4. Typo: A couple of things that ight seem strange when you print them out:
   a. Should be might
5. Typo: This is another hyperparameter that needs to be chose
   a. Should be chosen
6. Typo: way as befor and printing them
   a. Should be before

[sethjuarez]

Thanks for the help!