message: Add the instructions to suppress the pytest deprecation warnings from testing-unit-py
diff: @@ -16,12 +16,10 @@ An example of writing mock-based unit tests with both infrastructure definition
  2. Run the tests:
  ```
  - $ python -m pytest # or simply `pytest`
  + $ python -m pytest --disable-pytest-warnings # or simply `pytest --disable-pytest-warnings`
  - ------------------------------------------------------------
  - Ran 2 tests in 0.004s
  + ====================================================================================================== 3 passed, 6 warnings in 0.76s =======================================================================================================
  - OK
  ```
  ## Further steps
  