Windows install page: what to know before you start (from dev c59774b8252d)

Administrator rights for the prerequisites, none for the build and
everyday use; an hour or two for a first install, TeX Live alone twenty
to thirty minutes.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>

README.md

@@ -53,7 +53,7 @@ are regenerated on each release — patches cannot be merged directly.
 Report problems (or send patches) to the author; accepted changes are
 applied to the development tree and appear in a following snapshot.
 
-This snapshot was assembled from development commit `9d6f66456a3d`.
+This snapshot was assembled from development commit `c59774b8252d`.
 
 ## License