message: fix link to package documentation on README.md
diff: @@ -15,7 +15,7 @@ data types. Currently we focus on the capabilities needed for inferencing (scori
  ONNX is [widely supported](http://onnx.ai/supported-tools) and can be found in many frameworks, tools, and hardware. Enabling interoperability between different frameworks and streamlining the path from research to production helps increase the speed of innovation in the AI community. We invite the community to join us and further evolve ONNX.
  # Use ONNX
  -* [Documentation of ONNX Python Package](https://github.com/onnx/onnx)
  +* [Documentation of ONNX Python Package](https://onnx.ai/onnx/)
  * [Tutorials for creating ONNX models](https://github.com/onnx/tutorials).
  * [Pre-trained ONNX models](https://github.com/onnx/models)
  