Content update (typo)

Author: canchebagur

content/hardware/05.pro-solutions/solutions-and-kits/stella/tutorials/01.user-manual/content.md

@@ -289,9 +289,9 @@ This process demonstrates the working principle of many UWB applications, where
 
 First, connect the Arduino Stella to your computer using a USB-C cable, open the Arduino IDE and connect the board to it.
 
-***If you are new to the Arduino Stella, ensure you have installed the required board support package by going to Tools > Board > Boards Manager and searching for "mbed OS Boards".***
+***If you are new to the Arduino Stella, ensure you have installed the required board support package by going to Tools > Board > Boards Manager and searching for "Mbed OS Boards".***
 
-Copy and paste the example sketch below into a new sketch in the Arduino IDE:
+Copy and paste the example sketch below into a new sketch in the Arduino IDE:|
 
 ```arduino 
 /**