Docs: Fix typo in `email.headerregistry.rst` (#140965)

Fix missing 'Header' suffix on header class name in `email.headerregistry.rst`

diff --git a/Doc/library/email.headerregistry.rst b/Doc/library/email.headerregistry.rst
index 7f8044932fae9930c58f59b30a1203fc4e1ef6a2..ff8b601fe3d1bb159e8bed8b39780a8bbd8b3f28 100644 (file)
--- a/Doc/library/email.headerregistry.rst
+++ b/Doc/library/email.headerregistry.rst
@@ -294,7 +294,7 @@ variant, :attr:`~.BaseHeader.max_count` is set to 1.
        ``inline`` and ``attachment`` are the only valid values in common use.
 
 
-.. class:: ContentTransferEncoding
+.. class:: ContentTransferEncodingHeader
 
    Handles the :mailheader:`Content-Transfer-Encoding` header.