Adding missing semi colons

Author: Nyholm

cache.rst

@@ -489,13 +489,13 @@ the same key could be invalidate with one function call::
     use Symfony\Contracts\Cache\ItemInterface;
 
     $value0 = $pool->get('item_0', function (ItemInterface $item) {
-        $item->tag(['foo', 'bar'])
+        $item->tag(['foo', 'bar']);
 
         return 'debug';
     });
 
     $value1 = $pool->get('item_1', function (ItemInterface $item) {
-        $item->tag('foo')
+        $item->tag('foo');
 
         return 'debug';
     });