get slug () {
    const strippedFilename = this.strippedFilename

    if (/^(index|readme)$/i.test(strippedFilename)) {
      const strippedFilename = this.stripFilename(
        path.basename(path.dirname(this._filePath || this.regularPath))
      )

      if (strippedFilename) {
        return slugify(strippedFilename)
      }
    }

    return slugify(strippedFilename)
  }
slugified file name.

@returns {string}
@api public