Johnny client demo sites

Four fictional static websites for demos, ads, and the editor after a normal move. Not real businesses. Each site is its own host — paste that origin into Johnny, not a path under this index.

1. Ordination Dr. Helene Wartlinger — Vienna dental practice (DE)
   https://johnny-demo-wartlinger.pages.dev/
2. Riedkamp Energie GmbH — Berlin solar & heat-pump installer (DE)
   https://johnny-demo-riedkamp.pages.dev/
3. Plover & Rye — Bristol café-restaurant (EN)
   https://johnny-demo-plover.pages.dev/
4. Cast Yard — Manchester fitness studio (EN)
   https://johnny-demo-castyard.pages.dev/