message: Update left navigation with new page.
diff: @@ -38,6 +38,8 @@ upper_tabs:
  path: /lite/convert/cmdline_reference
  - title: "Python API"
  path: /lite/convert/python_api
  + - title: "Convert quantized models"
  + path: /lite/convert/quantization
  - heading: "Convert a TensorFlow 2.0 model"
  - title: "TensorFlow Lite converter and 2.0"
  