code: function readDirectory (srcDir) {
    let srcTree = {}
    const entries = fs.readdirSync(srcDir)
  
    entries.forEach(function (entry) {
      const filePath = path.join(srcDir, entry)
      if (fs.lstatSync(filePath).isDirectory()) {
        srcTree[entry] = readDirectory(filePath)
      } else {
        srcTree[entry] = fs.readFileSync(filePath, {
          encoding: 'utf8'
        })
      }
    })
  
    return srcTree
  }
docs: reads a directory into an object
  @param {String} srcDir - source directory
  @returns {Object} an object containing the directory file contents