Update blueprints.yaml

Author: mblode

blueprints.yaml

@@ -7,7 +7,7 @@ author:
   email: [email protected]
   url: http://matthewblode.com
 homepage: https://github.com/mblode/grav-theme-medium
-demo: http://grav.matthewblode.com.au
+demo: http://medium.matthewblode.com.au
 keywords: medium, theme, minimal, modern, fast, responsive, html5, css3, multilanguage
 bugs: https://github.com/getgrav/grav-theme-medium/issues
 license: MIT