Add Arrow Button in bottom right corner to scroll up

[shreya-panale]

[sahastrakishore123]

I would like to do this as a part of Hacktoberfest. Can you assign me to do so? @ShreyaPanale

[Prathyusha2210]

I would be glad to take this up. it would be helpful for my hactoberfest contributions if you assign me this? @ShreyaPanale