Add information that rules can be customized

[szotp]

Thanks for making this package.

I think it would make sense to inform people that these rules can easily be customized. It was not clear to me until I checked Dart docs.

Ignoring rules is very nice when migrating from ugly codebase - I just added this to my project and I have hundreds of warnings and errors. I fixed what I could, ignored the rest, and will continue cleanup when I have more time.

[passsy]

Good point, added!

[kuhnroyal]

This is not working correctly for me, I don't think this is an issue of this library but maybe you know where to look. My guess is somewhere in the analyzer.

lint version: 1.1.0
analyzer version: 0.38.5

This works: extending the set of rules with the YAML list syntax

include: package:lint/analysis_options.yaml

linter:
  rules:
    - prefer_double_quotes

This does not work: extending the set of rules with the YAML property syntax

include: package:lint/analysis_options.yaml

linter:
  rules:
    prefer_double_quotes: true

Now only prefer_double_quotes gets flagged as warning.
As a result one can not remove a rule that is configured in the lint package. Only adding is possible.

This could also be a limitation or bug in some YAML library that prevents the merging of List and Map.