Decision: How do we want to display import URLs for each starter template?

* Doesn't have to be front matter
* Remember we want this in Github Readme too

The issue only mentions starter templates, import URLs, front matter, and the GitHub README; it names no files, tests, or entry points. First clarify the desired display format and where each template's URL should appear, then inspect the repository's starter-template and README documentation. Done means the format is agreed and consistently represented in the relevant template documentation and GitHub README.

Scritto dal modello di indicizzazione a partire dal testo della issue.