sitemap(tree, host)

Generates a basic sitemap for the given map-based tree so that it can be more easily crawled by search engines. The sitemap function prepends the indicated host URL to all paths in the tree to generate a list of the search engine should visit.

Example: if tinySite.ori contains:

// tinySite.ori
{
  index.html: `
    <h1>Home</h1>
    <a href="about.html">About</a>
  `

  about.html: "<h1>About</h1>"
}

then calling sitemap generates:

$ ori Origami.sitemap tinySite.ori, "'https://mysite.org'"
<?xml version="1.0" encoding="UTF-8"?>
<urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9">
  <url>
    <loc></loc>
  </url>
  <url>
    <loc>about.html</loc>
  </url>
</urlset>