feat: banner e screenshot della pagina wordpress.org, con le didascalie nel readme

readme.txt

@@ -82,6 +82,12 @@ Yes, with a service key from Piazza in Festa, pasted in Settings > Piazza in Fes
 
 You can set the theme (light or dark), the accent colour and the heading. The rest lives inside the frame, on purpose: that way your CSS cannot break the widget and the widget cannot break your layout.
 
+== Screenshots ==
+
+1. The cards layout: the next events of a few towns, with the poster of the event when the town published one.
+2. The compact list, with a heading of your own, for a sidebar or a narrow column.
+3. The carousel, a full width strip that scrolls sideways.
+
 == Changelog ==
 
 = 1.0.0 =