Debugging Tensorflow via TensorBoard Plugin

tf.debugger sometime is very difficult to use for debugging purpose, as it's traditional console output. In tensorflow 2018 summit, Xin Zhang did a presentation for how-to debug Tensorflow module with TensorBoard plugins (see reference link 1). I'd like to setup and play with this TensorBoard Plugin for debugging purpose. This passage will include the following sections:

1. How to setup debugging via TensorBoard plugin
2. Demo: identify 1 issue via TensorBoard plugin
3. Some more consideration

Reference:

1. Debugging TensorFlow with TensorBoard plugins (TensorFlow Dev Summit 2018)