update sample code

site/content/tutorial/06-bindings/04-group-inputs/app-a/App.svelte

@@ -11,34 +11,34 @@
 <h2>Size</h2>
 
 <label>
-	<input type=radio group={scoops} value={1}>
+	<input type=radio group={scoops} name="scoops" value={1}>
 	One scoop
 </label>
 
 <label>
-	<input type=radio group={scoops} value={2}>
+	<input type=radio group={scoops} name="scoops" value={2}>
 	Two scoops
 </label>
 
 <label>
-	<input type=radio group={scoops} value={3}>
+	<input type=radio group={scoops} name="scoops" value={3}>
 	Three scoops
 </label>
 
 <h2>Flavours</h2>
 
 <label>
-	<input type=checkbox group={flavours} value="Cookies and cream">
+	<input type=checkbox group={flavours} name="flavours" value="Cookies and cream">
 	Cookies and cream
 </label>
 
 <label>
-	<input type=checkbox group={flavours} value="Mint choc chip">
+	<input type=checkbox group={flavours} name="flavours" value="Mint choc chip">
 	Mint choc chip
 </label>
 
 <label>
-	<input type=checkbox group={flavours} value="Raspberry ripple">
+	<input type=checkbox group={flavours} name="flavours" value="Raspberry ripple">
 	Raspberry ripple
 </label>
 

site/content/tutorial/06-bindings/04-group-inputs/app-b/App.svelte

@@ -17,17 +17,17 @@
 <h2>Size</h2>
 
 <label>
-	<input type=radio bind:group={scoops} value={1}>
+	<input type=radio bind:group={scoops} name="scoops" value={1}>
 	One scoop
 </label>
 
 <label>
-	<input type=radio bind:group={scoops} value={2}>
+	<input type=radio bind:group={scoops} name="scoops" value={2}>
 	Two scoops
 </label>
 
 <label>
-	<input type=radio bind:group={scoops} value={3}>
+	<input type=radio bind:group={scoops} name="scoops" value={3}>
 	Three scoops
 </label>
 
@@ -35,7 +35,7 @@
 
 {#each menu as flavour}
 	<label>
-		<input type=checkbox bind:group={flavours} value={flavour}>
+		<input type=checkbox bind:group={flavours} name="flavours" value={flavour}>
 		{flavour}
 	</label>
 {/each}

site/content/tutorial/06-bindings/04-group-inputs/text.md

@@ -33,4 +33,4 @@ let menu = [
 {/each}
 ```
 
-It's now easy to expand our ice cream menu in new and exciting directions.
+It's now easy to expand our ice cream menu in new and exciting directions.