Clean up a removed example from examples/README.md
code removed in
@@ -18,8 +18,6 @@ cargo run --example hello_world
[custom_assets](./custom_assets.rs) - Include images
-[custom_element](./custom_element.rs) - Render webcomponents
-
[custom_html](./custom_html.rs) - Customize wrapper HTML
[eval](./eval.rs) - Evaluate JS expressions
