diff --git a/boards/arduino-zero/doc.txt b/boards/arduino-zero/doc.txt
index 7bf7fdd49d..75e45e7d12 100644
--- a/boards/arduino-zero/doc.txt
+++ b/boards/arduino-zero/doc.txt
@@ -6,8 +6,8 @@
 ## Overview
 
 The `Arduino Zero` is a board by Arduino/Genuino featuring a ATSAMD21G18A.
-The SAMD21 is a ARM Cortex-M0+ micro-controller.  It has 256Kb of flash memory
-and 32Kb of RAM.
+The SAMD21 is a ARM Cortex-M0+ micro-controller.  It has 256KiB of flash memory
+and 32KiB of RAM.
 
 This board is available [here](https://store.arduino.cc/product/GBX00003).
 
@@ -17,28 +17,28 @@ This board is available [here](https://store.arduino.cc/product/GBX00003).
 
 
 ### MCU
-| MCU        | ATSAMD21G18A      |
-|:------------- |:--------------------- |
-| Family | ARM Cortex-M0+        |
-| Vendor        | Atmel                 |
-| RAM        | 32Kb                  |
-| Flash      | 256Kb             |
-| Frequency  | up to 48MHz |
-| FPU        | no                |
-| Timers | 6 (1x 16-bit, 2x 24-bit, 3x 32-bit)   |
-| ADCs       | 6x 12-bit channels)           |
-| UARTs      | 2                 |
-| SPIs       | max 6 (see UART)                  |
-| I2Cs       | max 6 (see UART)              |
-| Vcc        | 1.8V - 3.6V           |
-| Datasheet  | [Datasheet](http://ww1.microchip.com/downloads/en/DeviceDoc/SAM_D21_DA1_Family_Data%20Sheet_DS40001882E.pdf) |
+| MCU           | ATSAMD21G18A                          |
+|:------------- |:------------------------------------- |
+| Family        | ARM Cortex-M0+                        |
+| Vendor        | Atmel                                 |
+| RAM           | 32KiB                                 |
+| Flash         | 256KiB                                |
+| Frequency     | up to 48MHz                           |
+| FPU           | no                                    |
+| Timers        | 6 (1x 16-bit, 2x 24-bit, 3x 32-bit)   |
+| ADCs          | 6x 12-bit channels)                   |
+| UARTs         | 2                                     |
+| SPIs          | max 6 (see UART)                      |
+| I2Cs          | max 6 (see UART)                      |
+| Vcc           | 1.8V - 3.6V                           |
+| Datasheet     | [Datasheet](http://ww1.microchip.com/downloads/en/DeviceDoc/SAM_D21_DA1_Family_Data%20Sheet_DS40001882E.pdf) |
 
 ### User Interface
 
 1 LED:
 
-| Device | PIN |
-|:------ |:--- |
+| Device | PIN  |
+|:------ |:---- |
 | LED0   | PA17 |