docs: fix typo in applications example

[logan-connolly]

Summary

Typo found in the "applications" page makes the code example not work.

Checklist

• [x] I understand that this PR may be closed in case there was no previous discussion. (This doesn't apply to typos!)
• [x] I've added a test for each change that was introduced, and I tried as much as possible to make a single atomic change.
• [x] I've updated the documentation accordingly.