Update peps/pep-0750.rst

Co-authored-by: Adam Turner <9087854+AA-Turner@users.noreply.github.com>

Author: davepeck

peps/pep-0750.rst

@@ -17,7 +17,8 @@ Post-History: `09-Aug-2024 <https://discuss.python.org/t/60408>`__,
               `18-Nov-2024 <https://discuss.python.org/t/71594>`__,
 Resolution: `10-Apr-2025 <https://discuss.python.org/t/71594/130>`__
 
-.. canonical-doc: ref:`python:template-strings`
+.. canonical-doc:: ref:`python:template-strings`
+
 
 Abstract
 ========