Update books

rustbot · rustbot · commit 490fd3ddd244 · 2025-10-06T19:01:25.000+02:00
diff --git a/src/doc/reference b/src/doc/reference
@@ -1 +1 @@
-Subproject commit e11adf6016a362766eea5a3f9832e193994dd0c8
+Subproject commit 8efb9805686722dba511b7b27281bb6b77d32130
