Update video link on home page

Author: timsears

resources/content/pages/index/index-en.md

@@ -1,7 +1,7 @@
 ---
 home_title: en (English) index page content
 home_content:
-  home_video_id: re96UgMk6GQ
+  home_video_id: MEmRarBL9kw
   home_intro: |
     Haskell is not “just another programming language”: it embodies a radical and elegant attack on the entire enterprise of writing software. It profoundly influences the world of software for the better.