message: Add kitchen.yml as a Test Kitchen file
  The default is no longer .kitchen.yml. We changed it to kitchen.yml about a year ago.
diff: @@ -1987,7 +1987,10 @@ export const extensions: IFileCollection = {
  },
  {
  icon: 'kitchenci',
  - extensions: ['.kitchen.yml'],
  + extensions: [
  + '.kitchen.yml',
  + 'kitchen.yml',
  + ],
  filename: true,
  format: FileFormat.svg,
  },
  