bpo-36189: Fixing typo in tutorial introduction (GH-13090)

diff --git a/Doc/tutorial/introduction.rst b/Doc/tutorial/introduction.rst
index 3e0c99558ed7f3c9619fd476b8fe3fb989d5636f..a4dbd6351b77d8e7871912c7317bf75dba876333 100644 (file)
--- a/Doc/tutorial/introduction.rst
+++ b/Doc/tutorial/introduction.rst
@@ -383,7 +383,7 @@ items of different types, but usually the items all have the same type. ::
    >>> squares
    [1, 4, 9, 16, 25]
 
-Like strings (and all other built-in :term:`sequence` type), lists can be
+Like strings (and all other built-in :term:`sequence` types), lists can be
 indexed and sliced::
 
    >>> squares[0]  # indexing returns the item