Add a "Supported Platforms" section to the README

Signed-off-by: Tiyash Basu <[email protected]>

Author: tiyash-basu-frequenz

README.md

@@ -8,6 +8,14 @@
 
 A development kit to interact with the Frequenz development platform.
 
+## Supported Platforms
+
+This SDK is supported on and thoroughly tested with the following platforms:
+
+- **Python:** 3.11
+- **Operating System:** Ubuntu 20.04
+- **Architectures:** amd64, arm64
+
 ## Quick Start
 
 We assume you are on a system with Python available. If that is not the case,