Refs #29652 -- Fixed typo in docs/releases/2.1.txt.

docs/releases/2.1.txt

@@ -402,7 +402,7 @@ Miscellaneous
   suitable alternatives. Compared to the ``QUERY_TERMS`` constant, they allow
   your code to also account for any custom lookups that have been registered.
 
-* Compatibly with ``py-bcrypt`` is removed as it's unmaintained. Use `bcrypt
+* Compatibility with ``py-bcrypt`` is removed as it's unmaintained. Use `bcrypt
   <https://pypi.org/project/bcrypt/>`_ instead.
 
 .. _deprecated-features-2.1: