git -C "${_DATA}" show "${rev}:pages${PATH_INFO}#page.md" \
| { printf '<article class="revision">'; md; printf '</article>'; } \
| theme_page - "${page##*/}"
git -C "${_DATA}" show "${rev}:pages${PATH_INFO}#page.md" \
| { printf '<article class="revision">'; md; printf '</article>'; } \
| theme_page - "${page##*/}"