--- chapters/build.xml.new	2022-10-27 09:44:25.567011354 -0600
+++ chapters/build.xml	2022-10-27 09:49:05.876956001 -0600
@@ -30,7 +30,7 @@
     <variablelist>
       <varlistentry>
         <term>
-          Qt
+          <link xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="http://qt-project.org">Qt</link>
         </term>
         <listitem>
           <para>
@@ -45,7 +45,7 @@
       </varlistentry>
       <varlistentry>
         <term>
-          libusb 1.0
+          <link xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="http://libusb.sourceforge.net">libusb 1.0</link>
         </term>
         <listitem>
           <para>
