Added hackathon on Landing page

[Deepanshu0703]

Description

Yes, As like other features like backend , web dev and other you have description of them on the landing page but there is not description of Hackathon on Landing Page.

Fixes #376

Replace issue_no with the issue number which is fixed in this PR

Screenshots

Checklist

• [ ] Tests have been added or updated to cover the changes
• [ ] Documentation has been updated to reflect the changes
• [x] Code follows the established coding style guidelines
• [x] All tests are passing

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[swapnilsparsh]

@Deepanshu0703 Use SVG. Don't use PNG

[Deepanshu0703]

@swapnilsparsh Corrected that.

[swapnilsparsh]

@Deepanshu0703 Use some svg related to Hackathon

[Deepanshu0703]

do you find that earlier png image good, if yes then i will change it to svg.

[swapnilsparsh]

do you find that earlier png image good, if yes then i will change it to svg.

Yes, that was good.

[Deepanshu0703]

Hey @swapnilsparsh why you closed this issue I was working on it

[swapnilsparsh]

@Deepanshu0703 As you were inactive so it is closed now.

[Deepanshu0703]

I was finding the avg image as there are very less images can you reopen it so that I can add the changes

[swapnilsparsh]

@Deepanshu0703 It is already fixed #404