improve example

examples/imageOverlay.json5

@@ -5,8 +5,8 @@
       { type: 'video', path: './assets/IMG_4605.MOV', cutTo: 2 },
       { type: 'image-overlay', path: './assets/overlay.svg', width: 0.2, position: { x: 0.95, y: 0.03, originX: 'right' } },
       { type: 'image-overlay', path: './assets/emoji.png', visibleUntil: 0.5, zoomDirection: 'in' },
-      { type: 'image-overlay', path: './assets/emoji.png', position: 'top', visibleFrom: 0.7, visibleUntil: 1.3, width: 0.2 },
-      { type: 'image-overlay', path: './assets/emoji.png', position: 'bottom', visibleFrom: 0.7, visibleUntil: 1.3, height: 0.2 },
+      { type: 'image-overlay', path: './assets/emoji2.svg', position: 'top', visibleFrom: 0.7, visibleUntil: 1.5, width: 0.2 },
+      { type: 'image-overlay', path: './assets/emoji2.svg', position: 'bottom', visibleFrom: 0.7, visibleUntil: 1.5, height: 0.2 },
     ] },
   ],
 }