taint: add reminder about updating docs and scripts

taint: add reminder about updating docs and scripts

Sometimes people update taint-related pieces of the kernel without
updating the supporting documentation or scripts.  Add a reminder to do
this.

Link: https://lkml.kernel.org/r/20251015221626.1126156-1-rdunlap@infradead.org
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Suggested-by: Jason Gunthorpe <jgg@nvidia.com>
Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
Cc: David Gow <davidgow@google.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>