added new verifier to contribution list

[AU-HC]

Description

We have implemented an ElectionGuard verifier in Go as a part of our bachelor’s project at Aarhus University. The report will be included in the repository in the future. We would like this on the list of verifiers on the website.

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[rc-ms]

Hello verifier team. Thank you so much for your contribution! The tech team is taking a couple of days off but I wanted to get back.
We will review your submission and verifier and if passing will promptly approve, but were wondering if you wanted to get on a call and discuss background and intent and give feedback on what worked and didn't from a development perspective, we would be most appreciative.
Thanks again for your interest in our project and I look forward to speaking.

[AU-HC]

We would be happy to meet with you and discuss the background and intent of our submission, as well as provide feedback on our development process (to the best of our ability).

Please feel free to contact us via email (202004086@post.au.dk) to arrange a meeting time that works for all of us. We appreciate the opportunity to collaborate with you further and look forward to hearing from you soon.

[rc-ms]

Simple update content-wise and verifier was checked independently.