Oops, misspelled Derek's name

[nathenharvey]

Preview: https://doradotdev--pr1258-drafts-on-6jb3k170.web.app/ai/research-insights/ai-as-a-tutor/

[gemini-code-assist]

Code Review

This pull request correctly fixes a typo in Derek DeBellis's name across two markdown files, improving content accuracy. The change is straightforward and looks good. While reviewing, I noticed a small improvement opportunity in the files that could be addressed in a separate change: in both hugo/content/ai/research-insights/ai-as-a-tutor/index.md (line 14) and hugo/content/insights/ai-as-a-tutor/index.md (line 11), Mindy Tsai's LinkedIn URL uses http. For better security and consistency, it's recommended to update this to https. As per the repository's style guide, here's a coffee joke for you: Why did the coffee file a police report? It got mugged!

[github-actions]

Visit the preview URL for this PR (updated for commit 792cbc0):

https://doradotdev--pr1258-drafts-on-6jb3k170.web.app

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[davidstanke]

LGTM