Adding N&N entry for Java 18 support (#4)

Co-authored-by: Sravan Kumar Lakkimsetti <77106773+sravanlakkimsetti@users.noreply.github.com>

4.24/jdt.html

@@ -40,6 +40,31 @@ <h2>Java development tools</h2>
   <col />
 </colgroup>
 <tbody>
+<!-- ******************* Java 18 Support ************************************* -->
+  <tr>
+    <td id="Java18" class="section" colspan="2">
+    <h2>Java&trade; 18 Support </h2></td>
+  </tr>
+   <tr id="Java_17"> <!-- https://bugs.eclipse.org/bugs/show_bug.cgi?id=570733 -->
+      <td class="title">Java 18</td>
+      <td class="content">
+          <a href="https://jdk.java.net/18/">Java 18</a> is out and Eclipse JDT supports Java 18 in 4.24. 
+          <p></p>
+          <p>
+          The release notably includes the following Java 18 features:
+           <br/>
+           <a href="https://openjdk.java.net/jeps/420"> JEP 420: Pattern Matching for switch (Second Preview)</a>.
+           <br/>
+           <a href="https://openjdk.java.net/jeps/413"> JEP 413: Code Snippets in Java API Documentation</a>.
+           </p>
+           <p>
+           Please note that preview option should be on for <a href="https://openjdk.java.net/projects/jdk/18/">preview language features</a>.
+           For an informal introduction of the support, 
+           please refer to <a href="https://wiki.eclipse.org/Java18/Examples">Java 18 Examples wiki</a>. 
+           </p>
+      </td>
+  </tr>
+  <!-- ******************* End of Java 18 Support ************************************* -->
 
   <!-- ******************* Java 18 Support ************************************* -->
   <tr>