HIP update core.py DeviceInterface doc

Author: MiloLurati

kernel_tuner/core.py

@@ -213,7 +213,7 @@ def __init__(self, kernel_source, device=0, platform=0, quiet=False, compiler=No
         :type device: int
 
         :param lang: Specifies the language used for GPU kernels.
-            Currently supported: "CUDA", "OpenCL", or "C"
+            Currently supported: "CUDA", "OpenCL", "HIP" or "C"
         :type lang: string
 
         :param compiler_options: The compiler options to use when compiling kernels for this device.