Fixed up time_refactor.md
Fixed up time_refactor.md

I moved to it to issues since the PR is closed and small enough that it warrants a look over the changes and the test failures to get a slight understanding of the scope of the project.
OpenAstronomy/openastronomy.github.io,Cadair/openastronomy.github.io,Cadair/openastronomy.github.io,OpenAstronomy/openastronomy.github.io,dpshelio/openastronomy.github.io,dpshelio/openastronomy.github.io,Cadair/openastronomy.github.io,OpenAstronomy/openastronomy.github.io,dpshelio/openastronomy.github.io