Two ways, both plugin "hack", file qa-xml-sitemap.php
qa-xml-sitemap.php
after line 159
echo '<urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9">'."\n";
add:
Welcome to the Q&A site for Question2Answer.
If you have a question about Q2A, please ask here, in English.
To report a bug, please create a new issue on Github or ask a question here with the bug tag.
If you just want to try Q2A, please use the demo site.