chore(curriculum): fix captilization in the comments.json

[buzz-buzz-Alaska]

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Checklist:

• [X] I have read freeCodeCamp's contribution guidelines.
• [X] My pull request has a descriptive title (not a vague title like Update index.md)
• [X] My pull request targets the main branch of freeCodeCamp.
• [X] I have tested these changes either locally on my machine, or GitPod.

Closes #48797

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