Adding Python 3.8 as supported version

Author: kulkarnisonia16

includes/functions-supported-languages.md

@@ -18,7 +18,7 @@ ms.custom: include file
 |[F#](../articles/azure-functions/functions-reference-fsharp.md)|GA (.NET Framework 4.7)|GA (.NET Core 2.2)| GA (.NET Core 3.1) |
 |[Java](../articles/azure-functions/functions-reference-java.md)|N/A|GA (Java 8)| GA (Java 8)|
 |[PowerShell](../articles/azure-functions/functions-reference-powershell.md) |N/A|GA (PowerShell Core 6)| GA (PowerShell Core 6)|
-|[Python](../articles/azure-functions/functions-reference-python.md)|N/A|GA (Python 3.6 & 3.7)| GA (Python 3.6 & 3.7)|
+|[Python](../articles/azure-functions/functions-reference-python.md)|N/A|GA (Python 3.6 & 3.7)| GA (Python 3.6, 3.7 & 3.8)|
 |[TypeScript](../articles/azure-functions/functions-reference-node.md#typescript) |N/A|GA<sup>1</sup>| GA<sup>1</sup> |