doc: bsim boards: Typo fixes

Just a few grammar fixes

Signed-off-by: Alberto Escolar Piedras <[email protected]>

Author: aescolar

boards/native/doc/bsim_boards_design.rst

@@ -363,7 +363,7 @@ Other considerations
   typically x86. x86 is little endian, which is typically also the case for the
   target architecture. If this is not the case, embedded code which works in one
   may not work in the other due to endianness bugs.
-  Note that Zephyr code is be written to support both big and little endian.
+  Note that Zephyr's code should be written to support both big and little endian.
 - WordSize: The bsim targets, as well as normal embedded targets are 32 bit
   targets. In the case of the bsim targets this is done by explicitly targeting
   x86 (ILP32 ABI) instead of x86_64. This is done purposefully to provide more

boards/native/nrf_bsim/doc/nrf52_bsim.rst

@@ -12,7 +12,7 @@ NRF52 simulated board (BabbleSim)
 Overview
 ********
 
-To allow simulating a nRF52833 SOC a Zephyr target boards is provided: the
+To allow simulating a nRF52833 SOC, a Zephyr target board is provided: the
 nrf52_bsim.
 
 This uses `BabbleSim`_ to simulate the radio activity, and the

boards/native/nrf_bsim/doc/nrf54l15bsim.rst

@@ -1,7 +1,7 @@
 .. _nrf54l15bsim:
 
-NRF54L15 simulated boards (BabbleSim)
-#####################################
+NRF54L15 simulated board (BabbleSim)
+####################################
 
 .. contents::
    :depth: 1
@@ -12,7 +12,7 @@ NRF54L15 simulated boards (BabbleSim)
 Overview
 ********
 
-To allow simulating nRF54L15 SOCs a Zephyr target boards is provided: the
+To allow simulating nRF54L15 SOCs, a Zephyr target board is provided: the
 ``nrf54l15bsim/nrf54l15/cpuapp``.
 
 This uses `BabbleSim`_ to simulate the radio activity, and the
@@ -35,7 +35,7 @@ on the simulated nRF54L15 SOC.
 
    This simulated target does **not** yet support targeting the cpuflpr core.
 
-This boards include models of some of the nRF54L15 SOC peripherals:
+This board includes models of some of the nRF54L15 SOC peripherals:
 
 * AAR (Accelerated Address Resolver)
 * CCM (AES CCM mode encryption)