Add directive name, so that quickreference.xsl can extract default value correctly.
[header=<var>timeout</var>[-<var>maxtimeout</var>][,MinRate=<var>rate</var>]
[body=<var>timeout</var>[-<var>maxtimeout</var>][,MinRate=<var>rate</var>]
</syntax>
-<default>header=20-40,MinRate=500 body=20,MinRate=500</default>
+<default>RequestReadTimeout header=20-40,MinRate=500 body=20,MinRate=500</default>
<contextlist><context>server config</context><context>virtual host</context>
</contextlist>
<compatibility>Defaulted to disabled in
