samples: mgmt: updatehub: add label directive

This sample was missing a label to place it in generated documentation.

Signed-off-by: Peter Bigot <peter.bigot@nordicsemi.no>
This commit is contained in:
Peter Bigot 2020-08-27 11:09:14 -05:00 committed by Ioannis Glaropoulos
commit b33cde6c5d

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@ -1,3 +1,5 @@
.. _updatehub_fota_sample:
UpdateHub embedded Firmware Over-The-Air (FOTA) sample
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