message: Fixed stream output - node demo works now
diff: @@ -376,9 +376,9 @@ export default class PptxGenJS {
  // STEP 6: Wait for Promises (if any) then generate the PPTX file
  Promise.all(arrChartPromises)
  .then(() => {
  - // A: stream file
  if (outputType == 'STREAM') {
  - resolve(zip.generateAsync({ type: 'nodebuffer' }))
  + // A: stream file
  + zip.generateAsync({ type: 'nodebuffer' }).then(content => { resolve(content) })
  } else if (outputType) {
  // B: Node [fs]: Output type user option or default
  resolve(zip.generateAsync({ type: outputType || 'nodebuffer' }))
  