Archive 2 versions of repo

[jessicaguo]

• [x] tag different stages of the repo
• [x] Create releases
• [x] Bug Tyson for Zenodo access
• [x] Ask Debasmita to update README
• [ ] archive current repo as 2.0, inclusive of spring and fall 2021

[dlebauer]

https://github.com/citation-file-format/citation-file-format

[jessicaguo]

Created followup #83 to help Debasmita with documentation