Update License Copyright

[dipanshurdev]

In README.md, the License copyright year needs to be updated.

[mathanraj0601]

I would like to work on this issue @amanr-dev can I get assigned?

[dipanshurdev]

Assigned it to @mathanraj0601

[mathanraj0601]

Thank you @amanr-dev :). I have made a PR for this issue can you review it