Remove unused block element in index.html

[SebastianCCC]

📝 Description

Removed unused div in your index.html

🔧 Fixes #(issue)

I hope it's alright i made a PR without opening an issue.

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📷 Provide related Screenshot/Gifs if any.

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• [ ] I have performed a self-review of my own code.
• [x] I'm a contributor in Hacktoberfest'21.

[SebastianCCC]

no problem