change logic from start button demo visibility

src/pages/guided-tracing/V.astro

@@ -217,7 +217,7 @@ import Layout from "../../layouts/Layout.astro";
             textY = isMobile ? customHeight / 5 : customHeight / 2.4;
       const firstTextLayer = this.add.text(textX, textY, '1. Slant',{ font: '700 40px quicksand', fill: '#05b3a4'});
       const audioOneAudio = this.sound.add('audioOne');
-      audioOneAudio.play();
+      // audioOneAudio.play();
       firstLayer.setDepth(1);
       firstLayer.setAlpha(0.5);
       firstLayer.setInteractive({ draggable: true });
@@ -316,6 +316,11 @@ import Layout from "../../layouts/Layout.astro";
     startButton.setInteractive().on('pointerdown', () => {
       audioOneAudio.play();
       firstTextLayer.setVisible(true);
+        animatedLetter.setVisible(false);     firstScreen.setVisible(false);
+      graphics.setVisible(true);
+      hideButton.setVisible(false);
+      demoButton.setVisible(true);
+      startButton.setVisible(false);
 
     })
   }