Extract the --reload-systemd option text into a shared option file
at docs/source/markdown/options/reload-systemd.md and reference it
with @@option in both podman-quadlet-install and podman-quadlet-rm
manpages, following the established pattern for shared options.
Rename the manpages from .md to .md.in to indicate preprocessing.
Fixes#28370
Signed-off-by: Kit Dallege <xaum.io@gmail.com>
