message: updated release section
diff: <!-- START doctoc generated TOC please keep comment here to allow auto update -->
  <!-- DON'T EDIT THIS SECTION, INSTEAD RE-RUN doctoc TO UPDATE -->
  -**Table of Contents** *generated with [DocToc](https://github.com/thlorenz/doctoc)*
  -- [PptxGenJS Release Checklist](#pptxgenjs-release-checklist)
  +
  - [Test Library](#test-library)
  - [Browser](#browser)
  - [Node](#node)
  - [React/TypeScript](#reacttypescript)
  - [Release New Version](#release-new-version)
  + - [File Prep](#file-prep)
  + - [GitHub](#github)
  + - [NPM](#npm)
  <!-- END doctoc generated TOC please keep comment here to allow auto update -->
  @@ -55,13 +57,20 @@ TypeScript Defs
  ## Release New Version
  +### File Prep
  1. Consolidate `src/bld/*.ts` into `types/index.d.ts` (Note: `charts` and `shapes` are special and stay!)
  2. Update `package.json` version
  3. Update `src/pptxgen.ts` version
  4. Build using `$ gulp`
  5. Open `dist/*.js` and check headers
  6. Update `CHANGELOG.md` date, etc.
  -7. Copy CHANGELOG entry and draft new release: [Releases](https://github.com/gitbrent/PptxGenJS/releases)
  -8. Use "Version X.x.x" as title and "v3.1.1" as tag
  -9. Go back to Releases page, double-check title/tag, release when ready
  -10. `cd ~/GitHub/PptxGenJS` then `npm publish`
  +7. Checks: Are ts-defs updated?
  +
  +### GitHub
  +1. Copy CHANGELOG entry and draft new release: [Releases](https://github.com/gitbrent/PptxGenJS/releases)
  +2. Use "Version X.x.x" as title and "v3.1.1" as tag
  +3. Go back to Releases page, double-check title/tag, release when ready
  +
  +### NPM
  +1. `cd ~/GitHub/PptxGenJS`
  +2. `npm publish`
  