samples: external_lib: Add readme to external library sample

Add readme to external library sample

Signed-off-by: Joakim Andersson <joakim.andersson@nordicsemi.no>
This commit is contained in:
Joakim Andersson 2020-03-24 17:08:08 +01:00 committed by Carles Cufí
parent 54e28678a3
commit f5ec251c8f

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.. _external_library:
External Library
#################
Overview
********
A simple example that demonstrates how to include an external static library
into the Zephyr build system.
The demonstrates both how to build the external library using a different build
system and how to include the built static library.