Update sites/svelte-5-preview/src/routes/docs/content/01-api/02-runes.md

Co-authored-by: Ben McCann <[email protected]>

Author: Rich-Harris

sites/svelte-5-preview/src/routes/docs/content/01-api/02-runes.md

@@ -66,7 +66,7 @@ In non-runes mode, a `let` declaration is treated as reactive state if it is upd
 
 ## `$state.frozen`
 
-State declared with `$state.frozen` cannot be mutated; it can only be _reassigned_. In other words, rather than assigning to a property of an object, or using an array method like `push`, replace the object or array altogether:
+State declared with `$state.frozen` cannot be mutated; it can only be _reassigned_. In other words, rather than assigning to a property of an object, or using an array method like `push`, replace the object or array altogether if you'd like to update it:
 
 ```diff
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