Update change detection notebook

[robbibt]

Proposed changes

Include a brief description of the changes being proposed, and why they are necessary.

Checklist

• Clear all outputs, run notebook from start to finish, and save the notebook in the state where all cells have been sequentially evaluated
• Check for any spelling mistakes using the DEA Sandbox's built-in spellchecker (double click on markdown cells then right-click on pink highlighted words). For example:

[review-notebook-app]

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