Issue #5341: Fix a variety of spelling errors.
diff --git a/Doc/tutorial/classes.rst b/Doc/tutorial/classes.rst
index 48c7bcb..939126e 100644
--- a/Doc/tutorial/classes.rst
+++ b/Doc/tutorial/classes.rst
@@ -470,7 +470,7 @@
only works if the base class is defined or imported directly in the global
scope.)
-Python has two builtin functions that work with inheritance:
+Python has two built-in functions that work with inheritance:
* Use :func:`isinstance` to check an object's type: ``isinstance(obj, int)``
will be ``True`` only if ``obj.__class__`` is :class:`int` or some class