message: Add instructions to install stable or nightly versions of tflite-model-maker.
diff: @@ -51,6 +51,12 @@ There are two ways to install Model Maker.
  pip install tflite-model-maker
  ```
  +If you want to install nightly version, please follow the command:
  +
  +```shell
  +pip install tflite-model-maker-nightly
  +```
  +
  * Clone the source code from GitHub and install.
  ```shell
  