doc: simplify the command to build Zephyr for ACRN
Simplify the build command using the west tool.
@@ -33,9 +33,7 @@ Steps for Using Zephyr as User VM
.. code-block:: none
$ cd samples/hello_world
- $ mkdir build && cd build
- $ cmake -DBOARD=acrn ..
- $ make
+ $ west build -p auto -b acrn .
This will build the application ELF binary in ``samples/hello_world/build/zephyr/zephyr.elf``.
