change main banner

Author: kaiagaoqy

index.md

@@ -2,7 +2,7 @@
 title: Growing AI like a Child, at Scale
 layout: home
 description: description
-intro_image: "images/illustrations/main-banner.png"
+intro_image: "images/illustrations/pointing.svg"
 intro_image_absolute: true
 intro_image_hide_on_mobile: true
 show_call_box: true