Add line break missing after rebase.

docs/releases/5.1.txt

@@ -418,6 +418,7 @@ Miscellaneous
 
 * The undocumented ``django.urls.converters.get_converter()`` function is
   removed.
+
 * :class:`~django.db.models.ImageField` no longer re-reads the file from the
   storage backend after ``width_field`` and ``height_field`` are set. If
   your storage backend resizes images, the actual image's width and height will