message: fixed jsonc default extension
diff: @@ -86,7 +86,7 @@ export const languages: ILanguageCollection = {
  jekyll: { ids: 'jekyll', defaultExtension: 'jekyll' },
  jinja: { ids: 'jinja', defaultExtension: 'jinja' },
  json: { ids: 'json', defaultExtension: 'json' },
  - jsonc: { ids: 'jsonc', defaultExtension: 'json' },
  + jsonc: { ids: 'jsonc', defaultExtension: 'jsonc' },
  json5: { ids: 'json5', defaultExtension: 'json5' },
  julia: { ids: ['julia', 'juliamarkdown'], defaultExtension: 'jl' },
  iodine: { ids: 'iodine', defaultExtension: 'id' },
  