Added SEF to the hacktoberlist

[vaibhav-009]

Thanks for contributing to the Hacktoberfest Swag List 😃 🎉! Before submitting your pull request, please check off as many of the items below as you can:

1. I have read the Contributing.md file and formatted this PR correctly
2. I'm not adding a company from the blocklist
3. I make sure to fix things promptly if an error or suggestion comes up

Thanks and Happy Hacktoberfest! 🎉
Tagging @crweiner to take a look. 👀

Fixes #747

[netlify]

✅ Deploy Preview for hacktoberfest-swag-list ready!

Name	Link
🔨 Latest commit	3ee500d
🔍 Latest deploy log	https://app.netlify.com/sites/hacktoberfest-swag-list/deploys/651ee7b505e0fc00084b831b
😎 Deploy Preview	https://deploy-preview-765--hacktoberfest-swag-list.netlify.app/list
📱 Preview on mobile	Toggle QR Code... Use your smartphone camera to open QR code link.

---

To edit notification comments on pull requests, go to your Netlify site configuration.

[ghost]

👇 Click on the image for a new way to code review

Legend

[codeclimate]

Trailing spaces

[codeclimate]

Code Climate has analyzed commit 3ee500d and detected 0 issues on this pull request.

View more on Code Climate.

[vaibhav-009]

@crweiner please do review this PR.

[crweiner]

Cross-posting this from #747:

---

I'm not certain if SEF is offering their own swag for Hacktoberfest, or mentioning that you could win swag in general (they may not be aware that the official event no longer has a shirt and stickers that they send out).

What is Hacktoberfest?
Hacktoberfest is open to everyone in our global community. Whether you’re a developer, student learning. During the entire month of October, all you have to do is contribute to any open source projects and open at least 4 pull requests. And you can win awesome prizes like a T-shirt, stickers, and coupons.
https://sef.discourse.group/t/it-s-hacktoberfest-month/543

Do you happen to see where they are offering their own swag?

[crweiner]

Hi @vaibhav-009!

I mentioned in #747 that I don't believe SEF is offering their own, unique swag. I appreciate your contribution though, and hope you are having a great Hacktoberfest!

Also, I took a look at the other repos you are contributing to, and be sure to avoid anything that is spam or a simple "+1" to your PR count for Hacktoberfest. Please be sure to read through the Participation rules and make sure that each PR you submit is a meaningful contribution that will add value to a project.

Thanks!

[vaibhav-009]

hey @crweiner I have made a PR now for another issue can you please review that ?
#774