Add PostCocoon::Url

[the-eater]

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• I agree to the usage of the META file as listed here.

• I have a license field listed in my META file that is one of https://spdx.org/licenses

  • My license is not one of those found on spdx.org but I do have a license field.
    In this case make sure you have a license URL listed under support. See this example.
  • I don't have a license field. Yes I understand this is a not recommended.