Update README.md

Co-authored-by: Jonathan Hale <Squareys@googlemail.com>

README.md

@@ -61,7 +61,7 @@ onClick() {
 
     const position = new Float32Array(3);
     this.object.getPositionWorld(position);
-    // Play's from specified position relative to audio-listener
+    // Plays from specified position relative to audio-listener
     this.audio.play(position);
 }