Rollup merge of #157924 - rustbot:docs-update, r=ehuss

jhpratt · web-flow · commit e1af1a052148 · 2026-06-15T16:16:15.000-04:00
Update books ## rust-lang/reference 2 commits in 01b0ee707f4571e803c8b2c471d8335a448f5d60..2c27905c15a51983b54d84f050d3bda096194d27 2026-06-15 14:08:07 UTC to 2026-06-08 16:22:03 UTC - undefined: fix typo (rust-lang/reference#2285) - Document RISC-V d, e, and f extensions (rust-lang/reference#2274)
diff --git a/src/doc/reference b/src/doc/reference
@@ -1 +1 @@
-Subproject commit 01b0ee707f4571e803c8b2c471d8335a448f5d60
+Subproject commit 2c27905c15a51983b54d84f050d3bda096194d27
