HIP supported GPUs

- Suggestion
- Fix CUDA GPUs link
- Remove incorrect only phrase
- MD fix

docs/index.md

@@ -1,7 +1,15 @@
 # HIP documentation
 
-The Heterogeneous-computing Interface for Portability (HIP) API is a C++ runtime 
-API and kernel language that lets developers create portable applications for AMD and NVIDIA GPUs from single source code. 
+The Heterogeneous-computing Interface for Portability (HIP) API is a C++ runtime
+API and kernel language that lets developers create portable applications for AMD
+and NVIDIA GPUs from single source code.
+
+For HIP supported AMD GPUs on multiple operating systems, see:
+
+* `Linux system requirements <https://rocm.docs.amd.com/projects/install-on-linux/en/latest/reference/system-requirements.html#supported-gpus>`_
+* `Microsoft Windows system requirements <https://rocm.docs.amd.com/projects/install-on-windows/en/latest/reference/system-requirements.html#windows-supported-gpus>`_
+
+The CUDA enabled NVIDIA GPUs are supported by HIP. For more information, see `GPU Compute Capability <https://developer.nvidia.com/cuda-gpus>`_.
 
 ## Overview