Document changes and release 5.13.14pureos1~amber1 of linux-librem5

Signed-off-by: Martin Kepplinger <martin.kepplinger@puri.sm>
2 jobs for release51314_1_amber in 83 minutes and 7 seconds (queued for 38 minutes and 14 seconds)
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Status Job ID Name Coverage
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passed #365633
librem5
build:aarch64

00:26:38

passed #365634
librem5:arm64
build:deb

01:05:52