Updating link to docs

Author: RogerKratz

Src/doc/Reference/modules/links.xml

@@ -24,7 +24,7 @@
         </listitem>
 		<listitem>
 			<para>
-				<ulink url="https://envers.bitbucket.io">Latest documentation</ulink>
+				<ulink url="https://nhibernate.info/doc/envers/">Latest documentation</ulink>
 			</para>
 		</listitem>
     </orderedlist>