Commits should be rebased for faster rendering

[Denubis]

While running an instructor workshop today, I noticed the quite long import and render times of the page. It may be somewhat improved if we remove the branches and rebase many of the commits into significantly smaller batches.

I'm not sure what the rebase policy is here, but we should probably make the programmatic/cloning side of this sort of thing more accessible. Perhaps rebasing only the universal carpentries style commits?

[fmichonneau]

Thanks @Denubis, all the branches have been deleted. We typically don't rebase our repos to keep the history intact and give appropriate credits to contributors. Using the GitHub "template" feature makes it also somwhat easier now. We could also look into using this repository as a Jekyll remote theme for setting up workshops.

[Denubis]

Let me know if you want me to make a credits-file-exporter. Mapping credits from git status into a specific file should be doable. (Or if you want me to explore any of the other features you mentioned above).