Add pull request template for flint

[Tlazypanda]

Fixes #51 Added pull request template in .github folder to ease the process of making pull requests and to follow guidelines.

[gmajan]

Sneha, thank you for this. Can you please make sure that the contributor has to sign off? By adding their email contributors confirm that they comply with the DCO:
"Sign your message with Signed-off-by: Random J Developer random@developer.example.org to agree to Developer Certificate of Origin (DCO) (to certify that you wrote or otherwise have the right to submit your contribution to the project.)"
For more see here https://github.com/moja-global/About_moja_global/blob/master/Contributing/How-to-Contribute-Code.md

[Tlazypanda]

Hey @gmajan I have updated the pull request ✌️

[Tlazypanda]

Hey @gmajan Yeah the --signoff command works, there is even a shorthand for it just -s so the command will be basically like git commit -s -m "my first commit" or git commit --signoff -m "my first commit" You can find more information here https://github.com/git/git/blob/b2c150d3aa82f6583b9aadfecc5f8fa1c74aca09/Documentation/git-commit.txt#L154-L161

We can add this one too but I felt the other one might be a tad bit more convenient for developers 😅 Your call ✌️

[gmajan]

Great. I am with you. Sorry for my ignorance and thank you for the link. Can we turn back the suggestion and then I will merge.
thx

[Tlazypanda]

@gmajan please always share your feedback, it always helps to figure out in-case I missed something out or if there is a better way to solve a problem ✌️ This is the way we will learn and grow together 🎉

[Tlazypanda]

@gmajan Updated pull request 🎉