Different profile card color based on graduating year of participant

[satya9500]

[npawankr1]

A few more description @satya9500

[satya9500]

So if you visit https://aitoss.github.io/HacktoberFest_2020/participants.html, you will see that each participant has a different year of graduating. We want to group such cards by the different colors of cards.
Hope this helps.

[thanksalot123]

sir i want to work on this issue please assign this to me

[satya9500]

Okay @thanksalot123
I've assigned it to you.

[thanksalot123]

i have done it and opened a pull request please check

[Erum640]

Please assign me this issue I will like to work on it