Add the demo (#163)

pocket_tts/static/index.html

@@ -28,7 +28,7 @@
                 class="w-full border rounded p-2"
                 placeholder="Enter your text here..."
                 rows="4"
-            >Hello world. I am Kyutai's Pocket TTS. I'm fast enough to run on small CPUs. I hope you'll like me.</textarea>
+            >DEFAULT_TEXT_PROMPT</textarea>
         </div>
 
         <div class="bg-white p-4 rounded-lg shadow">
@@ -314,7 +314,9 @@
                     formData.append('voice_url', voiceUrl);
                 }
 
-                const response = await fetch('/tts', {
+                const ttsEndpoint = `${window.location.pathname.replace(/\/+$/, '')}/tts`;
+
+                const response = await fetch(ttsEndpoint, {
                     method: 'POST',
                     body: formData
                 });
@@ -392,4 +394,4 @@
         });
     </script>
 </body>
-</html>
+</html>