release: note that 9.2.3 added some bits

Documentation/release/9.2.md

@@ -167,8 +167,10 @@ o = vtkPoints() # o is actually an instance of foo
 * `.pyi` files for autocompletion and hinting in editors are now available in
   VTK builds and wheels. Note that Windows wheels older than 3.8 do not provide
   `.pyi` files for platform-specific reasons.
-* Python 3.11. support and avoidance of newly deprecated APIs.
-* Matplotlib 3.6 is now supported.
+* Starting with 9.2.3, Python 3.11 support and avoidance of newly deprecated APIs.
+* Starting with 9.2.3, Matplotlib 3.6 is now supported.
+* Starting with 9.2.3, `vtk[web]` is required to get web dependencies with the
+  wheels.
 
 [](#changes-web)
 ### Web