typing docs: Fix formatting issue (#119210)

diff --git a/Doc/library/typing.rst b/Doc/library/typing.rst
index 5b74dd9c9f4914bc4d50df1b89d3e3d3e3238fb5..2df2faeaf39bd0f10dd7bc9452d4491b46ca0910 100644 (file)
--- a/Doc/library/typing.rst
+++ b/Doc/library/typing.rst
@@ -2546,7 +2546,7 @@ types.
          ``__required_keys__`` and ``__optional_keys__`` rely on may not work
          properly, and the values of the attributes may be incorrect.
 
-   Support for :data:`ReadOnly` is reflected in the following attributes::
+   Support for :data:`ReadOnly` is reflected in the following attributes:
 
    .. attribute:: __readonly_keys__