message: Improve docs for cmdline
diff: @@ -11,17 +11,17 @@ is using the [Python API](python_api.md).
  The TensorFlow Lite Converter has a command line tool `tflite_convert` which
  supports basic models. Use the `TFLiteConverter` [Python API](python_api.md) for
  any conversions involving quantization or any additional parameters (e.g.
  -signatures in SavedModels or custom objects in Keras models).
  +signatures in [SavedModels](https://www.tensorflow.org/guide/saved_model) or custom objects in [Keras models](https://www.tensorflow.org/guide/keras/overview)).
  ## Usage
  The following flags specify the input and output files.
  * `--output_file`. Type: string. Specifies the full path of the output file.
  -* --saved_model_dir. Type: string. Specifies the full path to the directory
  +* `--saved_model_dir`. Type: string. Specifies the full path to the directory
  containing the SavedModel generated in 1.X or 2.0.
  -* --keras_model_file. Type: string. Specifies the full path of the HDF5 file
  - containing the tf.keras model generated in 1.X or 2.0.
  +* `--keras_model_file`. Type: string. Specifies the full path of the HDF5 file
  + containing the `tf.keras` model generated in 1.X or 2.0.
  The following is an example usage.
  