Fix and add more links.
diff --git a/Doc/howto/unicode.rst b/Doc/howto/unicode.rst
index f9eeae4..5d9e027 100644
--- a/Doc/howto/unicode.rst
+++ b/Doc/howto/unicode.rst
@@ -414,7 +414,7 @@
 ----------
 
 The ``str`` type is described in the Python library reference at
-:ref:`typesseq`.
+:ref:`textseq`.
 
 The documentation for the :mod:`unicodedata` module.