Add this to the footer:
<a href="http://www.macfaq.com/personal.html">Elliotte Rusty Harold</a><br/> <a href="mailto:elharo@metalab.unc.edu">elharo@metalab.unc.edu</a>
Require a way to copy nodes from the input document to attribute values in the output document.
Attribute value templates are the solution
<xsl:template match="maintainer"> <a href="{@url}"><xsl:value-of select="name"/></a><br/> <a href="mailto:{@email}"><xsl:value-of select="@email"/></a> </xsl:template>