Update .gitignore

[mccoystevens079-prog]

Thank you for opening a Pull Request!

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Before submitting your PR, there are a few things you can do to make sure it goes smoothly:

• [ ] Make sure to open a GitHub issue as a bug/feature request before writing your code! That way we can discuss the change, evaluate designs, and agree on the general idea
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• [ ] Appropriate docs were updated (if necessary)

Fixes #<issue_number_goes_here> 🦕

[google-cla[bot]]

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