Usage: use xml-dtd 4.3 in examples

Author: carlosame

usage.html

@@ -296,7 +296,7 @@ <h3 class="subtema" id="dom4j-gradle">Gradle setup</h3>
 build file:</p>
 <pre class="code"><code class="language-groovy">dependencies {
     implementation "io.sf.carte:css4j-dom4j:${css4jDom4jVersion}"
-    implementation "io.sf.carte:xml-dtd:4.2.1"
+    implementation "io.sf.carte:xml-dtd:4.3"
 }
 </code></pre>
 <p>But please remember that you have to set up css4j's repository, if you haven't already:</p>
@@ -328,7 +328,7 @@ <h3 class="subtema" id="dom4j-maven">Maven setup</h3>
 &lt;dependency&gt;
     &lt;groupId&gt;io.sf.carte&lt;/groupId&gt;
     &lt;artifactId&gt;xml-dtd&lt;/artifactId&gt;
-    &lt;version&gt;4.2.1&lt;/version&gt;
+    &lt;version&gt;4.3&lt;/version&gt;
 &lt;/dependency&gt;
 </code></pre>
 <p>Again, please keep in mind adding css4j's Maven repository to your POM file: