message: Update pre-built binaries
  This changelist updates the links for pre-built binaries, pointing them to the latest release rather than the latest commit.
diff: @@ -59,10 +59,10 @@ The [MaterialX Viewer](documents/DeveloperGuide/Viewer.md) leverages shader gene
  ### Pre-Built Binaries
  -The following binaries are automatically generated from the latest GitHub revision:
  +The following packages contain pre-built binaries for the latest release, including the MaterialX viewer, Python libraries, and example assets:
  -- [Microsoft Windows (Visual Studio 2017, 64-bit)](https://ci.appveyor.com/api/projects/jstone-lucasfilm/materialx/artifacts/build%2FMaterialX_Windows_VS2017_x64_Python37.zip?job=Environment%3A%20APPVEYOR_BUILD_WORKER_IMAGE%3DVisual%20Studio%202017%2C%20GENERATOR%3DVisual%20Studio%2015%202017%2C%20TOOLSET_NAME%3DVS2017%2C%20ARCH%3Dx64%2C%20PYTHON%3DC%3A%5CPython37-x64%2C%20PYTHON_NAME%3DPython37)
  -- [Microsoft Windows (Visual Studio 2019, 64-bit)](https://ci.appveyor.com/api/projects/jstone-lucasfilm/materialx/artifacts/build%2FMaterialX_Windows_VS2019_x64_Python38.zip?job=Environment%3A%20APPVEYOR_BUILD_WORKER_IMAGE%3DVisual%20Studio%202019%2C%20GENERATOR%3DVisual%20Studio%2016%202019%2C%20TOOLSET_NAME%3DVS2019%2C%20ARCH%3Dx64%2C%20PYTHON%3DC%3A%5CPython38-x64%2C%20PYTHON_NAME%3DPython38)
  +- [Microsoft Windows (Visual Studio 2017, 64-bit, Python 3.7)](https://github.com/materialx/MaterialX/releases/latest/download/MaterialX_Windows_VS2017_x64_Python37.zip)
  +- [Microsoft Windows (Visual Studio 2019, 64-bit, Python 3.8)](https://github.com/materialx/MaterialX/releases/latest/download/MaterialX_Windows_VS2019_x64_Python38.zip)
  ### Additional Resources
  