typo in docblock

src/Collection/Iterator/SortIterator.php

@@ -46,7 +46,7 @@ class SortIterator extends Collection
      *
      * The callback will receive as first argument each of the elements in $items,
      * the value returned in the callback will be used as the value for sorting such
-     * element. Please not that the callback function could be called more than once
+     * element. Please note that the callback function could be called more than once
      * per element.
      *
      * @param array|\Traversable $items The values to sort