Update Rationale.md

The following clarification is in response to the following issue:
#253

Rationale.md

@@ -137,6 +137,10 @@ Make sure to use Surface products that support [Device Firmware Configuration In
 
 * Business class Surface devices have dedicated TPM chips.
 
+* Check out [this article](https://github.com/HotCakeX/Harden-Windows-Security/wiki/Device-Guard-and-Virtualization-Based-Security-in-Windows#device-protection-in-windows-security-gives-you-one-of-these-4-hardware-scores) about Secured-Core specifications.
+
+* Pluton security chip is **not** a requirement for Secured-Core certification.
+
 <br>
 
 > [!IMPORTANT]\