message: Update profiler ui documentation.
diff: @@ -35,9 +35,8 @@ bazel-bin/tensorflow/core/profiler/profiler \
  --profile_path=/tmp/train_dir/profile_xx
  tfprof> op -select micros,bytes,occurrence -order_by micros
  -# To be open sourced...
  -bazel-bin/tensorflow/python/profiler/profiler_ui \
  - --profile_path=/tmp/profiles/profile_1
  +# Profiler ui available at: https://github.com/tensorflow/profiler-ui
  +python ui.py --profile_context_path=/tmp/train_dir/profile_xx
  ```
  ![ProfilerUI](g3doc/profiler_ui.jpg)
  