message: pres slide 'id' and 'rId' use Slide props now
diff: @@ -1712,9 +1712,7 @@ export function makeXmlPresentation(slides: ISlide[], pptLayout: ILayout, rtlMod
  // STEP 2: Add all Slides (SPEC: tag 3 under <presentation>)
  strXml += '<p:sldIdLst>'
  - for (let idx = 0; idx < slides.length; idx++) {
  - strXml += '<p:sldId id="' + (idx + 256) + '" r:id="rId' + (idx + 2) + '"/>'
  - }
  + slides.forEach(slide => (strXml += `<p:sldId id="${slide.id}" r:id="rId${slide.rId}"/>`))
  strXml += '</p:sldIdLst>'
  // STEP 3: Add Notes Master (SPEC: tag 2 under <presentation>)
  