Added Landing Page

[imniladri]

What changes have you made?

Added a creative landing page for the website.

Checklist

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• [x] I am making a proper pull request, not spam.
• [x] I've checked the issue list before deciding what to submit.
• [x] I have checked there aren't other open Pull Requests for the same update/change
• [x] I have tested the code before submission
• [x] I am a member of GDSC JGEC
• [x] I'm a Hacktoberfest'21 contributor.

Related Issues or Pull Requests

Solved Issue #19

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