Removed unused button

Author: BenjaminDannegard

content/hardware/05.pro-solutions/solutions-and-kits/stella/product.md

@@ -1,11 +1,9 @@
 ---
 title: Stella
 url_shop: https://store.arduino.cc/
-url_guide: /tutorials/
+url_guide: /tutorials/01.user-manual
 primary_button_url: /tutorials/01.user-manual
 primary_button_title: Get Started
-secondary_button_url: /tutorials/
-secondary_button_title: Bootloader Guide
 core: arduino:mbed_portenta
 forumCategorySlug: '/hardware/stella/91'
 certifications: [CE, FCC, UKCA, ROHS, REACH, WEEE, Bluetooth declaration]