fixup! EDU-1942: Adds supported platforms section

Author: franrob-projects

README.md

@@ -19,6 +19,12 @@ Everything you need to get started with Ably:
 
 ---
 
+## Supported platforms
+
+Ably aims to support a wide range of platforms. If you experience any compatibility issues, open an issue in the repository or contact [Ably support](https://ably.com/support).
+
+The following platforms are supported:
+
 | Platform | Support |
 |----------|---------|
 | Java | >=8 (JRE 1.8 or later). |