improved first content render time.

exampleSite/config.yaml

@@ -50,6 +50,11 @@ params:
   # staticPath: ""  # The path to serve the static files from
   favicon: "/fav.png"
 
+  # Whether to serve bootstrap css and js files from CDN or not. Can be set to true, "css" or "js" to choose between
+  # serving both, only the css, or only the js files through the CDN. Any other value will make so that CDN is not used.
+  # Note the lack of "" in true, it should be of boolean type.
+  useBootstrapCDN: false
+
   theme:
     disableThemeToggle: false
     # defaultTheme: "light" # dark