Update index.md

Changed Xilinx to AMD
Removed *preview* from Vitis-AI EP

Author: ThomasXilinx

docs/execution-providers/index.md

@@ -24,13 +24,14 @@ ONNX Runtime supports many different execution providers today. Some of the EPs
 |CPU|GPU|IoT/Edge/Mobile|Other|
 ---|---|---|---
 |Default CPU|[NVIDIA CUDA](../execution-providers/CUDA-ExecutionProvider.md)|[Intel OpenVINO](../execution-providers/OpenVINO-ExecutionProvider.md)|[Rockchip NPU](../execution-providers/community-maintained/RKNPU-ExecutionProvider.md) (*preview*)|
-|[Intel DNNL](../execution-providers/oneDNN-ExecutionProvider.md)|[NVIDIA TensorRT](../execution-providers/TensorRT-ExecutionProvider.md)|[Arm Compute Library](../execution-providers/community-maintained/ACL-ExecutionProvider.md) (*preview*)|[Xilinx Vitis-AI](../execution-providers/Vitis-AI-ExecutionProvider.md) (*preview*)|
+|[Intel DNNL](../execution-providers/oneDNN-ExecutionProvider.md)|[NVIDIA TensorRT](../execution-providers/TensorRT-ExecutionProvider.md)|[Arm Compute Library](../execution-providers/community-maintained/ACL-ExecutionProvider.md) (*preview*)|[AMD Vitis-AI](../execution-providers/Vitis-AI-ExecutionProvider.md)|
 |[TVM](../execution-providers/community-maintained/TVM-ExecutionProvider.md) (*preview*)|[DirectML](../execution-providers/DirectML-ExecutionProvider.md)|[Android Neural Networks API](../execution-providers/NNAPI-ExecutionProvider.md)|[Huawei CANN](../execution-providers/community-maintained/CANN-ExecutionProvider.md) (*preview*)|
 |[Intel OpenVINO](../execution-providers/OpenVINO-ExecutionProvider.md)|[AMD MIGraphX](../execution-providers/MIGraphX-ExecutionProvider.md)|[Arm NN](../execution-providers/community-maintained/ArmNN-ExecutionProvider.md) (*preview*)|[AZURE](../execution-providers/Azure-ExecutionProvider.md) (*preview*)|
 |[XNNPACK](../execution-providers/Xnnpack-ExecutionProvider.md)|[Intel OpenVINO](../execution-providers/OpenVINO-ExecutionProvider.md)|[CoreML](../execution-providers/CoreML-ExecutionProvider.md) (*preview*)|
 ||[AMD ROCm](../execution-providers/ROCm-ExecutionProvider.md)|[TVM](../execution-providers/community-maintained/TVM-ExecutionProvider.md) (*preview*)|
 ||[TVM](../execution-providers/community-maintained/TVM-ExecutionProvider.md) (*preview*)|[Qualcomm QNN](../execution-providers/QNN-ExecutionProvider.md)|
 |||[XNNPACK](../execution-providers/Xnnpack-ExecutionProvider.md)|
+|||[AMD Vitis-AI](../execution-providers/Vitis-AI-ExecutionProvider.md)|
 
 ## Add an Execution Provider