Create a new folder in a Solid system, with a dokieli editable document in it
function (newPaneOptions) {
    var kb = UI.store
    var newInstance = newPaneOptions.newInstance
    if (!newInstance) {
      let uri = newPaneOptions.newBase
      if (uri.endsWith('/')) {
        uri = uri.slice(0, -1)
        newPaneOptions.newBase = uri
      }
      newInstance = kb.sym(uri)
    }

    var contentType = mime.lookup(newInstance.uri)
    if (!contentType || !contentType.includes('html')) {
      newInstance = $rdf.sym(newInstance.uri + '.html')
    }
    newPaneOptions.newInstance = newInstance // Save for creation system

    console.log('New dokieli will make: ' + newInstance)

    var htmlContents = DOKIELI_TEMPLATE
    var filename = newInstance.uri.split('/').slice(-1)[0]
    filename = decodeURIComponent(filename.split('.')[0])
    const encodedTitle = filename.replace(/&/g, '&amp;').replace(/</g, '&lt;').replace(/>/g, '&gt;')
    htmlContents = htmlContents.replace('<title>', '<title>' + encodedTitle)
    htmlContents = htmlContents.replace('</article>', '<h1>' + encodedTitle + '</h1></article>')
    console.log('@@ New HTML for Dok:' + htmlContents)
    return new Promise(function (resolve, reject) {
      kb.fetcher.webOperation('PUT', newInstance.uri, { data: htmlContents, contentType: 'text/html' })
        .then(function () {
          console.log('new Dokieli document created at ' + newPaneOptions.newInstance)
          resolve(newPaneOptions)
        }).catch(function (err) {
          console.log('Error creating dokelili dok at ' +
            newPaneOptions.newInstance + ': ' + err)
        })
    })
  }