DOC: update index.html

[harshagarwal0401]

Update Index.html

I have seen the code and seen that we can add comments in the index.html file making the code more informative.

Add ScreenShots

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• [X] I'm a GSSOC'24 contributor
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[harshagarwal0401]

kindy assign me this issue under GSSOC'24 .

[nileshsn]

Assign me I will also work on this issue under GSSOC24.