Align instruction exemples with assert_output expected in secret handshake exercice

[resu-xuniL]

In this exercice, there's a difference between the output expected (wink,double blink) and the exemples given in the instructions.md file (wink, jump) -> extra space after comma.

This PR is to align them.

I choose to edit the instructions.md file so the tests have not to be run again.

If the intent was that the outputs should have that extra space after comma, the secret_handshake.bats file needs to be modified but in that case, all the tests must be run again as the assert_output would no longer be the same.

[no important files changed]

Reviewer Resources:

Track Policies

[IsaacG]

https://exercism.org/docs/community/being-a-good-community-member/suggesting-exercise-improvements

That markdown file is synced from an upstream repo. We generally do not accept manual changes to that file.

[IsaacG]

Given the limitations of using STDOUT for this track, the tests tend to be a touch wonky. The student is expected to use the tests to discover the exact requirements. I'm not sure we want to change the tests here, either. At most, maybe an append file for the instructions. I'd love to get the thoughts of the other maintainers.

[glennj]

I'm inclined to leave it as-is. Students may see the tests fail, spot the difference, and update their code.