Rename asset bundles.

Author: toddbirchard

flask_blueprint_tutorial/templates/layout.jinja2

@@ -21,8 +21,8 @@
   <meta name="twitter:site" content="@hackersslackers"/>
   <meta name="twitter:creator" content="@toddrbirchard"/>
   <meta name="twitter:card" content="summary_large_image"/>
-  <meta name="twitter:image" content="https://cdn.hackersandslackers.com/2021/08/_retina/flaskblueprints.jpg"/>
-  <meta property="og:image" content="https://cdn.hackersandslackers.com/2021/08/_retina/flaskblueprints.jpg"/>
+  <meta name="twitter:image" content="https://cdn.hackersandslackers.com/2021/08/flaskblueprints.jpg"/>
+  <meta property="og:image" content="https://cdn.hackersandslackers.com/2021/08/flaskblueprints.jpg"/>
   <meta property="og:image:width" content="1000"/>
   <meta property="og:image:height" content="523"/>
   <link href="https://fonts.googleapis.com/css?family=Poppins:200,300,400,500" rel="stylesheet">