Add check_skip example

[GuillaumeFavelier]

This PR follows #4 (comment) and adds a basic example on .github/workflows plus some explanations in the Readme.

[GuillaumeFavelier]

Should I add the trigger:

  pull_request:
    branches: [ master ]

in .github/workflows/fail-safe-commit-filter-separator-should-success.yml ?

Let me know what you think @mstachniuk

[larsoner]

Personally I would put this one at the top, above all other methods. It behaves most similarly to how ci skip does on all other platforms with fewer drawbacks.

[mstachniuk]

Thank you for your comment. Let's merge as it is for now. The example is a little bit long what can be a problem for first-time users.

[mstachniuk]

Let's merge as it is. I will change in all yamls to:

on:
  push:
    branches: [ master ]
  pull_request:
    branches: [ master ]

what is the best setup in my opinion.