fix: typo in create-selector.mdx (#681)

Author: lazylace37

src/routes/reference/secondary-primitives/create-selector.mdx

@@ -16,7 +16,7 @@ Useful for delegated selection state. As it makes the operation O(1) instead of
 ```tsx
 const isSelected = createSelector(selectedId)
 
-;<For each={list()}>
+<For each={list()}>
 	{(item) => <li classList={{ active: isSelected(item.id) }}>{item.name}</li>}
 </For>
 ```