Add #[derive(Clone)] in examples (#111)

* Add #[derive(Clone)] in examples

Closes #110

* Add backticks to rust elements

Co-authored-by: Teymour Aldridge <42674621+teymour-aldridge@users.noreply.github.com>

* Another backtics

Co-authored-by: Teymour Aldridge <42674621+teymour-aldridge@users.noreply.github.com>

Author: Mingun

src/concepts/html/components.md

@@ -42,7 +42,7 @@ html! {
 ```rust
 pub struct Container(Props);
 
-#[derive(Properties)]
+#[derive(Properties, Clone)]
 pub struct Props {
     pub children: Children,
 }
@@ -63,6 +63,8 @@ impl Component for Container {
 ```
 {% endcode %}
 
+{% hint style="info" %} Types for which you derive `Properties` must also implement `Clone`. This can be done by either using `#[derive(Properties, Clone)]` or manually implementing `Clone` for your type. {% endhint %}
+
 ## Nested Children with Props
 
 Nested component properties can be accessed and mutated if the containing component types its children.
@@ -86,7 +88,7 @@ html! {
 ```rust
 pub struct List(Props);
 
-#[derive(Properties)]
+#[derive(Properties, Clone)]
 pub struct Props {
     pub children: ChildrenWithProps<ListItem>,
 }
@@ -107,4 +109,3 @@ impl Component for List {
 }
 ```
 {% endcode %}
-