doc: fix misspellings in boards and samples docs

Signed-off-by: David B. Kinder <david.b.kinder@intel.com>
diff --git a/boards/arm/96b_neonkey/doc/96b_neonkey.rst b/boards/arm/96b_neonkey/doc/96b_neonkey.rst
index c497796..b2fe217 100644
--- a/boards/arm/96b_neonkey/doc/96b_neonkey.rst
+++ b/boards/arm/96b_neonkey/doc/96b_neonkey.rst
@@ -152,7 +152,7 @@
 2. Press and hold the USR button
 3. Press and release the RST button
 
-More detailed information on activating the ROM bootloder can be found in
+More detailed information on activating the ROM bootloader can be found in
 Chapter 29 of Application note `AN2606`_. The ROM bootloader supports flashing
 via UART, I2C and SPI protocols.
 
diff --git a/boards/arm/msp_exp432p401r_launchxl/doc/msp_exp432p401r_launchxl.rst b/boards/arm/msp_exp432p401r_launchxl/doc/msp_exp432p401r_launchxl.rst
index 3390c67..b62619d 100644
--- a/boards/arm/msp_exp432p401r_launchxl/doc/msp_exp432p401r_launchxl.rst
+++ b/boards/arm/msp_exp432p401r_launchxl/doc/msp_exp432p401r_launchxl.rst
@@ -51,7 +51,7 @@
 | UART      | on-chip    | serial port           |
 +-----------+------------+-----------------------+
 
-More details about the supported periperals are available in `MSP432P4XX TRM`_
+More details about the supported peripherals are available in `MSP432P4XX TRM`_
 Other hardware features are not currently supported by the Zephyr kernel.
 
 Building and Flashing
diff --git a/boards/x86/x86_jailhouse/doc/board.rst b/boards/x86/x86_jailhouse/doc/board.rst
index 36b9d89..fbde3ff 100644
--- a/boards/x86/x86_jailhouse/doc/board.rst
+++ b/boards/x86/x86_jailhouse/doc/board.rst
@@ -60,7 +60,7 @@
 
 Use this configuration to run basic Zephyr applications and kernel
 tests in a QEMU emulated environment (we assume the same QEMU
-configuration used to accomodate Jailhouse's configs/qemu-x86.c root
+configuration used to accommodate Jailhouse's configs/qemu-x86.c root
 cell configuration).
 
 For example, with the :ref:`synchronization_sample`, first set
diff --git a/samples/drivers/led_lpd8806/README.rst b/samples/drivers/led_lpd8806/README.rst
index c338ba3..a5e971d 100644
--- a/samples/drivers/led_lpd8806/README.rst
+++ b/samples/drivers/led_lpd8806/README.rst
@@ -19,7 +19,7 @@
 - LED strip using LPD8806 or compatible, such as `these strips from AdaFruit`_.
 
 - Zephyr board with SPI master driver. SPI communications must use 5V
-  signalling, which may require a level translator, such as the
+  signaling, which may require a level translator, such as the
   `74AHCT125`_.
 
 - 5V power supply.
diff --git a/samples/drivers/led_ws2812/README.rst b/samples/drivers/led_ws2812/README.rst
index 39a15f1..02210f3 100644
--- a/samples/drivers/led_ws2812/README.rst
+++ b/samples/drivers/led_ws2812/README.rst
@@ -20,7 +20,7 @@
   from AdaFruit`_.
 
 - Zephyr board with SPI master driver. SPI communications must use 5V
-  signalling, which may require a level translator, such as the
+  signaling, which may require a level translator, such as the
   `74AHCT125`_.
 
 - 5V power supply.