minor extension for docs

src/xdocs/config_coding.xml

@@ -108,7 +108,7 @@ String b = (a==null || a.length<1) ? null : a.substring(1);
       <subsection name="Description">
         <p>
           Checks that classes that define a covariant <code>equals()</code> method also override method <code>equals(java.lang.Object)</code>.  Inspired by <a
-          href="http://www.cs.nyu.edu/~lharris/papers/findbugsPaper.pdf">findbugs</a>.
+          href="http://www.cs.nyu.edu/~lharris/papers/findbugsPaper.pdf">Finding Bugs is Easy, chapter '2.3.1 Bad Covariant Definition of Equals (Eq)'</a>.
         </p>
 
         <p>