Update books

ehuss · ehuss · commit 072b85c370a0 · 2021-05-25T15:03:01.000-07:00
diff --git a/src/doc/edition-guide b/src/doc/edition-guide
@@ -1 +1 @@
-Subproject commit 1da3c411f17adb1ba5de1683bb6acee83362b54a
+Subproject commit 302a115e8f71876dfc884aebb0ca5ccb02b8a962
diff --git a/src/doc/embedded-book b/src/doc/embedded-book
@@ -1 +1 @@
-Subproject commit 569c3391f5c0cc43433bc77831d17f8ff4d76602
+Subproject commit 7349d173fa28a0bb834cf0264a05286620ef0923
diff --git a/src/doc/reference b/src/doc/reference
@@ -1 +1 @@
-Subproject commit 5aa457bf1b54bd2cd5d4cf49797f29299bdf89a7
+Subproject commit 9c68af3ce6ccca2395e1868addef26a0542e9ddd
diff --git a/src/doc/rust-by-example b/src/doc/rust-by-example
@@ -1 +1 @@
-Subproject commit 5f8c6da200ada77760a2fe1096938ef58151c9a6
+Subproject commit 805e016c5792ad2adabb66e348233067d5ea9f10
diff --git a/src/doc/rustc-dev-guide b/src/doc/rustc-dev-guide
@@ -1 +1 @@
-Subproject commit 1e6c7fbda4c45e85adf63ff3f82fa9c870b1447f
+Subproject commit 50de7f0682adc5d95ce858fe6318d19b4b951553
