Bug 32416: Add a warning to the file

Bug 32416: Add a warning to the file

Signed-off-by: David Nind <david@davidnind.com>
Signed-off-by: Marcel de Rooy <m.de.rooy@rijksmuseum.nl>
Signed-off-by: Tomas Cohen Arazi <tomascohen@theke.io>
(cherry picked from commit e88f31d8a28566cef2275c3d9e62f3432b1f54f2)
Signed-off-by: Matt Blenkinsop <matt.blenkinsop@ptfs-europe.com>
(cherry picked from commit ab0a00dcb90f07b6b115a76b916553eeabb9ee71)

Signed-off-by: Lucas Gass <lucas@bywatersolutions.com>
(cherry picked from commit 0b1b8df1d5a54e4af3a1df1f74b6dda6d1791d46)
Signed-off-by: Arthur Suzuki <arthur.suzuki@biblibre.com>