The default error message formarkdown-cli2 does not includedescription, aka the optional URL that we pass into the URL to provide consumers with more context about the rule.

It looks like as though we'd need projects to configure a separate formatter likeformatter-pretty if we want the error message to link to the description URL. I don't like that we need to install a separate dependency, but this is the more idiomatic route.

Another option is to just include the URL as part of the error message so the formatter doesn't need to be configured but this is less idiomatic.