Fix indentation in the sitemap.xml template
Fix indentation in the sitemap.xml template

By some funny, intentional or unintentional reason, there were improper
indentation in the sitemap.xml template. To be more specifically
<urlset> tag had 1 extra space compared to <xml> tag. From now on <xml>
and <urlset> tags have the same indentation in the name of sake!

ikalnytskyi/holocron