Fix incorrect link style (#518)

Author: seaxwi

content/Hardware Support/Generic/Reset-the-flash-memory-on-STM32H747-based-devices.md

@@ -54,7 +54,7 @@ Follow these steps:
 
    - Arduino IDE: Ensure that you are using the [latest version of the board package](https://support.arduino.cc/hc/en-us/articles/4404691106066-Update-board-packages-in-Arduino-IDE), then select File > Examples > STM32H747_System > QSPIFormat.
 
-   - Arduino Cloud Editor: Open the [QSPIFormat example](https://app.arduino.cc/sketches/examples?eid=arduino%2Fhardware%2Fmbed_opta%2F4.4.1%2Flibraries%2FSTM32H747_System%2Fexamples%2FQSPIFormat&slid=mbed_opta%3A4.4.1%3Astm32h747_system){.link-chevron-right} in the Cloud Editor.
+   - Arduino Cloud Editor: Open the [QSPIFormat example](https://app.arduino.cc/sketches/examples?eid=arduino%2Fhardware%2Fmbed_opta%2F4.4.1%2Flibraries%2FSTM32H747_System%2Fexamples%2FQSPIFormat&slid=mbed_opta%3A4.4.1%3Astm32h747_system){.link-chevron-external} in the Cloud Editor.
 
 1. Connect your device to your computer and select the device in the editor.