message: Update the GPU description in setup part
diff: @@ -49,7 +49,7 @@ These examples are implemented by Functional API and Sequential API.
  The listed benchmark results are obtained by running on Google Cloud Platform (GCP) with the following setup: </br>
  -- GPU: 2 x Tesla V100 (only for GPU test) </br>
  +- GPU: 2 x Tesla V100</br>
  - OS: Ubuntu 18.04 </br>
  - CPU: 8 x vCPUs, 30 GB memory </br>
  - CUDA: 10.1 </br>
  