update notebook

[tomvannuenen]

Updated this notebook as it was very long in the tooth and way too complex at the end with a challenge that caused significant attendance drop.

Notebook still needs a final challenge but this update already solves some of these pedagogical issues.

[pssachdeva]

• I think the "To Scrape or Not To Scrape" section can be removed. It should be covered in the slides (are we still doing those?)
• Typo in Step 2: Parse the Page..: "Now, we use the BeautifulSoup... to parse the response..."
• Do you think there should be accompanying images with the "find" sections so that students know what HTML corresponds to what in the webpage?
• Perhaps "Inspect Element" should be explicitly introduced. I usually do this anyway but it could be a good cue for future instructors

Overall, I think this looks good, and you can merge. It may still be too long to fit in 2 hours but it's worth another run to see how it goes.