Update examples, add css

examples/custom_assets.rs

@@ -1,3 +1,10 @@
+//! A simple example on how to use assets loading from the filesystem.
+//!
+//! If the feature "collect-assets" is enabled, the assets will be collected via the dioxus CLI and embedded into the
+//! final bundle. This lets you do various useful things like minify, compress, and optimize your assets.
+//!
+//! We can still use assets without the CLI middleware, but generally larger apps will benefit from it.
+
 use dioxus::prelude::*;
 
 #[cfg(not(feature = "collect-assets"))]
@@ -14,7 +21,7 @@ fn main() {
 fn app() -> Element {
     rsx! {
         div {
-            p { "This should show an image:" }
+            h1 { "This should show an image:" }
             img { src: ASSET_PATH.to_string() }
         }
     }