support extensionless files

[mmm1379]

there are files that come without extension, e.g. some shell scripts, Dockerfile, some config files...

suggestion:

ls:
  .: kebab-case

[Pere Orga]

May be covered by #56

[mmm1379]

May be covered by #56

Don’t think so. I want the files without extensions to have rules applied to them, but not any other file. The issue mentioned wants to apply some rules for all files, as I’ve understood.

[Pere Orga]

That is correct.

I imagine the syntax used to support both solutions should consider the other scenario too.