Don't show entire blog post on the home page

Author: adamwathan

src/pages/tailwindcss-v2/index.mdx

@@ -17,6 +17,8 @@ Over the course of those 18 months we released nine minor versions that added fe
 
 Today we're finally releasing Tailwind CSS v2.0.
 
+<!--more-->
+
 <div className="relative" style={{ paddingBottom: '56.25%' }}>
   <iframe
     className="absolute inset-0 h-full w-full"