message: updated node demos
diff: 1. Update `package.json` version
  2. Update `src/pptxgen.ts` version
  -3. Build using `$ npm run ship`
  -4. Consolidate new changes from `src/bld/*.ts` into `types/index.d.ts`
  +3. Build library: npm scripts > `ship`
  +4. Consolidate new changes from `src/bld/*.ts` into `types/index.d.ts` and update version in head comment
  5. Open `dist/*.js` and check headers
  6. Update `CHANGELOG.md` with new date
  7. Update `README.md` with new CDN links
  +8. Update `demos/node/package.json` version
  ## Test Newest Library Build
  @@ -40,7 +41,10 @@ Run Node test
  ```bash
  $ cd ~/GitHub/PptxGenJS/demos/node
  -$ node demo.js All
  +$ npm run demo
  +$ npm run demo-all
  +$ npm run demo-text
  +$ npm run demo-stream
  ```
  ### React/TypeScript
  