tweak gotweb.conf(5) intro blurb
diff --git a/gotweb/gotweb.conf.5 b/gotweb/gotweb.conf.5
index 8d7830a..81219c2 100644
--- a/gotweb/gotweb.conf.5
+++ b/gotweb/gotweb.conf.5
@@ -21,7 +21,17 @@
.Nd gotweb configuration file
.Sh DESCRIPTION
.Nm
-is the configuration file for gotweb.
+is the run-time configuration file for
+.Xr gotweb 8 .
+.Pp
+Paths mentioned in
+.Nm
+must be relative to
+.Pa /var/www ,
+the
+.Xr chroot 2
+environment of
+.Xr httpd 8 .
.Sh GLOBAL CONFIGURATION
Here are the settings that can be set globally:
.Bl -tag -width Ds