Auto merge of #67096 - mark-i-m:fix-rustc-guide-2, r=ehuss

Update rustc-guide
diff --git a/src/doc/rustc-guide b/src/doc/rustc-guide
index 934380b..7c56708 160000
--- a/src/doc/rustc-guide
+++ b/src/doc/rustc-guide
@@ -1 +1 @@
-Subproject commit 934380b7cfceaaa4e1b9bb0de4a372f32725520b
+Subproject commit 7c56708aab7986ca390221e8e8902f7de7f9b076