Reopt api v2

[vtnate]

Resolves #102

Pull Request Description

• Hit v2 of the reopt api
• Remove extra / in api endpoint path
  • This might fix the 404 errors we've been intermittently receiving from the api
• Update links to point to v2 of reopt api docs

Checklist (Delete lines that don't apply)

• [x] Documentation has been modified appropriately
• [x] All ci tests pass (green)
• [x] An issue has been created (which will be used for the changelog)
• [x] This branch is up-to-date with develop