Added Github actions to check Linting

[DivyanshiSingh]

Fixes: #18
Configured CI through Github actions to enforce Code style.
@lacabra please review and let me know the changes.

[vercel]

Someone is attempting to deploy a commit to a Personal Account owned by @lacabra on Vercel.

@lacabra first needs to authorize it.

[vercel]

This pull request is being automatically deployed with Vercel (learn more).
To see the status of your deployment, click below or on the icon next to each commit.

🔍 Inspect: https://vercel.com/lacabra/validation-digitalpublicgoods/kZFF7nLnStk34UkdkpFvFVJSGPvC
✅ Preview: https://validation-dig-git-fork-divyanshisingh-main-13b57f.vercel.app

[lacabra]

Looks good to me, thank you @DivyanshiSingh

[lacabra]

FYI @DivyanshiSingh: I didn't it mention in the original issue, but since this repo had Prettier configured as well, I also wanted to check for formatting in addition to the linter. Since it's easier for me to work directly on this repo than in a fork, I made those additional changes in #24 🙃