Bring in updates from the main Carpentries workshop content - #10

## :warning: WARNING :warning: This pull request contains a mix of workflow files and regular files. **This could be malicious.** No preview will be created. regular files: - .github/workbench-docker-version.txt - .github/workflows/README.md - .github/workflows/sandpaper-version.txt - .github/workflows/workflows-version.txt - CODE_OF_CONDUCT.md - LICENSE.md - episodes/01-run-quit.md - episodes/04-built-in.md - episodes/14-looping-data-sets.md - episodes/16-writing-functions.md - links.md - profiles/learner-profiles.md workflow files: - .github/workflows/docker_apply_cache.yaml - .github/workflows/docker_build_deploy.yaml - .github/workflows/docker_pr_receive.yaml - .github/workflows/pr-close-signal.yaml - .github/workflows/pr-comment.yaml - .github/workflows/pr-post-remove-branch.yaml - .github/workflows/pr-preflight.yaml - .github/workflows/pr-receive.yaml - .github/workflows/sandpaper-main.yaml - .github/workflows/update-cache.yaml - .github/workflows/update-workflows.yaml