Hi!OK, forget this mail thread. I've corrected this and am going to submit a replacement patch.
Rationale:
Reduces attack surface on kernel devs opening the links for MITM
as HTTPS traffic is much harder to manipulate.
+++ b/Documentation/admin-guide/README.rst
@@ -1,6 +1,6 @@
.. _readme:
-Linux kernel release 5.x <http://kernel.org/>
+Linux kernel release 5.x <https://kernel.org/>
=============================================
You need to add one "=" here, IIRC.
Pavel