updated formatting of frontmatter

Author: jhansson-ard

content/hardware/09.kits/maker/starter-kit-r4/product.md

@@ -4,7 +4,6 @@ url_shop: https://store.arduino.cc/products/arduino-starter-kit-multi-language
 url_guide: https://courses.arduino.cc/starterkitr4
 primary_button_url: https://courses.arduino.cc/starterkitr4
 primary_button_title: Go To Course
-
 sku: [K000007_R4, K000007_R4-6P]
 ---