Generate sitemap with static site generator

[pinage404]

#344 added static site generator

an optional steps could be added to generate the sitemap https://www.sitemaps.org/protocol.html

https://gitlab.com/pinage404/moku/-/blob/3bef350eded383e0d6a68ef4d73776a2cb23d8a6/generate_static_site.sh#L20