add certification and minor fixes

Author: Hannes7eicher

content/hardware/03.nano/boards/nano-r4/certifications/Arduino_ABX00142-CERT_CE.pdf

@@ -1,14 +1,13 @@
 ---
 title: Nano R4
 url_shop: https://store.arduino.cc/products/nano-r4
-url_guide: /tutorials/nano-r4/getting-started-nano-r4
-primary_button_url: /tutorials/nano-r4/getting-started-nano-r4
+primary_button_url: /tutorials/nano-r4/user-manual/#first-use
 primary_button_title: Get Started
 core: 
-certifications: []
+certifications: [CE, RoHS, REACH, WEEE, UKCA, RCM, FCC, IC, VCCI]
 forumCategorySlug: '/hardware/nano-family/nano-r4/190'
 productCode: '212'
-sku: [ABX00142]
+sku: [ABX00142, ABX00143]
 ---
 
 The **Arduino Nano R4** brings the power of a 32-bit **Arm® Cortex®-M4** processor to the beloved Nano family board form factor. Based on the **Renesas RA4M1** microcontroller, it features **256 kB Flash**, **32 kB SRAM** and an **8 kB EEPROM**, all running at **48 MHz** with a built-in **real-time clock** (RTC), **14-bit ADC** and a **12-bit DAC**.

content/hardware/03.nano/boards/nano-r4/certifications/Arduino_ABX00142-CERT_FCC.pdf

@@ -1,6 +1,6 @@
 Board:
   Name: Arduino® Nano R4
-  SKU: ABX00142
+  SKU: ABX00142 (Castellated Pins) / ABX00143 (With Headers)
 Microcontroller: Renesas RA4M1 (Arm® Cortex®-M4)
 USB:
   USB-C®: Programming Port