edit release version and readme for prod

This MR:

1. edits code.jsonversion to 1.0.0
2. edits package.json to 1.0.0
3. ran npm install and commited the updated package-lock.json

Next steps:

• Wait to merge until any other open MRs are merged
• Once merged, cut 1.0.0 release on GitLab
• Check DOI navigation: https://doi.org/10.5066/P19M9WYT
• Wait til changes mirror to GitHub, then cut 1.0.0 release on GitHub