added more voices (#37)

Co-authored-by: Prince Canuma <prince.gdt@gmail.com>

Author: andrepadez

mlx_audio/tts/audio_player.html

@@ -176,11 +176,19 @@ <h1>MLX-Audio Player</h1>
             <div class="form-group">
                 <label for="voice">Voice:</label>
                 <select id="voice">
+                    <option value="af_bella">AF Bella</option>
                     <option value="af_heart">AF Heart</option>
+                    <option value="af_nicole">AF Nicole</option>
                     <option value="af_nova">AF Nova</option>
-                    <option value="af_bella">AF Bella</option>
+                    <option value="af_sarah">AF Sarah</option>
+                    <option value="af_sky">AF Sky</option>
+                    <option value="am_adam">AM Adam</option>
+                    <option value="am_michael">AM Michael</option>
                     <option value="bf_emma">BF Emma</option>
-                </select>
+                    <option value="bf_isabella">BF Isabella</option>
+                    <option value="bm_george">BM George</option>
+                    <option value="bm_lewis">BM Lewis</option>
+                  </select>
             </div>
 
             <div class="form-group">