Fix created date

@gaborbernat noticed the created date was not correct for tox. https://twitter.com/gjbernat/status/1305582155943288833

Investigate if there is a way to get the correct data from github's graphql API. If not, manually enter the dates.

Start by checking the GitHub GraphQL API data for tox and comparing it with the table's current created date. Determine whether the API provides the correct value; done means the displayed date is corrected, either through the API data or a manual date entry.

Written by the indexing model from the issue text.