Changed Screenshot extensions and Updated Readme.md

[axewhyzed]

The screenshots were not loading in the Readme.md so i changed their extensions to jpg and edited the Readme.md accordingly.

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[n-ce]

Can you instead upload your own screenshots? Compress them to webp before uploading.

[axewhyzed]

The app is not running on my system as expected, probably because i can't setup netlify due to some reason. Also, while adding the images, i made some mistake in commit. I have no idea what next to do so i think i'll just have to close this pull request.

[n-ce]

The app is not running on my system as expected, probably because i can't setup netlify due to some reason.

There is no requirement for setting up netlify. The entire project can be run without setting up any build tools.

Also, while adding the images, i made some mistake in commit. I have no idea what next to do so i think i'll just have to close this pull request.

Okay.