Will add a badge containing the current date that changes on every reknitting. This is a simple pasting of r-code.
badge_last_change(location = ".")defaults to working directory
Rmarkdown
Other badges: badge_codecov,
badge_cran_ago,
badge_cran_date,
badge_cran_version_ago,
badge_cran_version_release,
badge_cran,
badge_github_fork,
badge_github_star,
badge_last_change_static,
badge_license,
badge_minimal_r_version,
badge_packageversion,
badge_projectstatus,
badge_rank,
badge_rdocumentation,
badge_thanks_md, badge_travis