Broken link: "Chart Suggestions thought starter" redirects to discontinued Typepad service

The link labeled “Chart Suggestions thought starter” on the [AI Roadmap](https://i.am.ai/roadmap) page currently redirects to a [Typepad.com](https://extremepresentation.typepad.com/files/choosing-a-good-chart-09.pdf) page, which is no longer available (Typepad discontinued its service as of September 30, 2025).