fix docs (#16409)

* fix docs

* oops

* another

* gah

Author: Rich-Harris

documentation/docs/02-runes/03-$derived.md

@@ -99,12 +99,16 @@ let selected = $derived(items[index]);
 If you use destructuring with a `$derived` declaration, the resulting variables will all be reactive — this...
 
 ```js
+function stuff() { return { a: 1, b: 2, c: 3 } }
+// ---cut---
 let { a, b, c } = $derived(stuff());
 ```
 
 ...is roughly equivalent to this:
 
 ```js
+function stuff() { return { a: 1, b: 2, c: 3 } }
+// ---cut---
 let _stuff = $derived(stuff());
 let a = $derived(_stuff.a);
 let b = $derived(_stuff.b);

documentation/docs/98-reference/.generated/client-errors.md

@@ -109,10 +109,10 @@ $effect(() => {
 The same applies to array mutations, since these both read and write to the array:
 
 ```js
-let array = $state([]);
+let array = $state(['hello']);
 
 $effect(() => {
-	array.push('hello');
+	array.push('goodbye');
 });
 ```
 

packages/svelte/messages/client-errors/errors.md

@@ -79,10 +79,10 @@ $effect(() => {
 The same applies to array mutations, since these both read and write to the array:
 
 ```js
-let array = $state([]);
+let array = $state(['hello']);
 
 $effect(() => {
-	array.push('hello');
+	array.push('goodbye');
 });
 ```