Docs: More examples

[stephanschubert]

Could you please provide some examples for more advanced usages?

For example how to use --skip to ignore redirect chains like:

not ok 700 external-redirect http://blog.dilbert.com/2016/12/27/the-kristina-talent-stack/
  ---
    operator: external-redirect
    expected:
      "302 http://blog.dilbert.com/2016/12/27/the-kristina-talent-stack/ --> 200 https://blog.dilbert.com/2016/12/27/the-kristina-talent-stack/"
    actual:
      "301 http://blog.dilbert.com/2016/12/27/the-kristina-talent-stack/ --> 200 https://blog.dilbert.com/2016/12/27/the-kristina-talent-stack/"
    at: https://stephanschubert.com/10-things-i-did-not-know-before-25/ (210:101) <a href="http://blog.dilbert.com/2016/12/27/the-kristina-talent-stack/" title="There's also one post about Trumps' talent stack." target="_blank" rel="nofollow noopener noreferrer" data-reactid="281">...</a>
  ...

Related: Why does it expect a 302 instead of a 301?

[Munter]

It's expecting a 302 temporary redirect instead of a 301 because linking to a resource that has been permanently moved (301) means you should update your link to avoid redirecting your users through avoidable redirect chains.

The skip matching pattern is a simple substring match on any of the yaml block error properties: operator, expected, actual, at. I'll see about adding examples of this

[stephanschubert]

@Munter Ah okay, makes sense to just replace the links in that case.