added tests

Author: Smartlinuxcoder

index.html

@@ -272,7 +272,7 @@ <h2>My best repositories</h2>
     <div class="footer">
       <p>Copyright © 2023 Smartlinuxcoder.
       All rights deserved.</p>
-      <p>Last change:added wav music version 3</p>
+      <p>Last change:added wav music version 4</p>
     </div>
        <audio id="music" src="xenogenesis.wav" preload="auto"></audio>