fix typos and broken links in contribution guides

[taylorreiter]

Hello! I would like you add your repository to this google doc as a bioinformatics-relevant hacktoberfest repo. To do so, I was checking the contribution guide (and open issues) and noticed some broken links and typos. I'm putting this PR in to clean those up.

[CLAassistant]

All committers have signed the CLA.

[VerisimilitudeX]

Hi @taylorreiter, thank you so much for your pull request to DNAnalyzer! I would really appreciate it if you could star this repository to show your support, if you haven't done so already. I (or another member from our team) will review your PR in the next 48 hours, and will get back to you. If you have any questions, please join our Discord server: https://discord.gg/X3YCvGf2Ug.

Thanks for adding us to the bioinformatics list.

[VerisimilitudeX]

This looks good, thanks again for adding us to Arcadia's list! Could you please tell me more about Arcadia Science? @taylorreiter

[taylorreiter]

This looks good, thanks again for adding us to Arcadia's list! Could you please tell me more about Arcadia Science? @taylorreiter

Yes, Arcadia Science is a science company that applies an evolutionary lens to accelerate purposeful discovery of nature's greatest innovations. A lot of our work right now is computational, so some of us are participating in hacktoberfest to give back to the open source software community. You can find out more about the company here: https://www.arcadiascience.com/