Unforking this repository #113

This repository is currently a fork of https://github.com/tobami/codespeed, as it's based on it. However, upstream is dead, and hasn't had any activity in the last six years. We've also made some significant changes, so at this point we're quite distinct. However, we are currently a fork, so we get notifications like:

Looking at GitHub's docs on detaching a fork, it seems there is unfortunately no way to do this without loosing all non-commit history. We could, however, transfer issues (and I think PRs) to the new repository, so we wouldn't loose too much. What do people think?