how to run failed scenarios code example

Example: how to run failed test cases in cucumber

- I use a cucumber plugin that is called "rerun",
which allows me to run ONLY failed test cases.

-     How did I achieve that is:
	- I created a second runner class and
      name it FailedTestRunner which dedicated
      to running only failed scenarios.
	- Let's say I have 100 tests running in the 
      first run and ten of those tests are failed.
	- If we implemented "rerun" structure correctly,
      all of the failed tests are going to be
      stored in "rerun.txt"
	- Our "FailedTestRunner" class will be pointing
     to "rerun.txt", and when we run it,
     it will only run those failed tests.