Update books

ehuss · ehuss · commit 6bfd987aa03c · 2021-01-12T21:20:21.000-08:00
diff --git a/src/doc/book b/src/doc/book
@@ -1 +1 @@
-Subproject commit 5bb44f8b5b0aa105c8b22602e9b18800484afa21
+Subproject commit ac57a0ddd23d173b26731ccf939f3ba729753275
diff --git a/src/doc/embedded-book b/src/doc/embedded-book
@@ -1 +1 @@
-Subproject commit ba34b8a968f9531d38c4dc4411d5568b7c076bfe
+Subproject commit ceec19e873be87c6ee5666b030c6bb612f889a96
diff --git a/src/doc/nomicon b/src/doc/nomicon
@@ -1 +1 @@
-Subproject commit a5a48441d411f61556b57d762b03d6874afe575d
+Subproject commit a8584998eacdea7106a1dfafcbf6c1c06fcdf925
diff --git a/src/doc/reference b/src/doc/reference
@@ -1 +1 @@
-Subproject commit b278478b766178491a8b6f67afa4bcd6b64d977a
+Subproject commit 50af691f838937c300b47812d0507c6d88c14f97
diff --git a/src/doc/rust-by-example b/src/doc/rust-by-example
@@ -1 +1 @@
-Subproject commit 1cce0737d6a7d3ceafb139b4a206861fb1dcb2ab
+Subproject commit 03e23af01f0b4f83a3a513da280e1ca92587f2ec
