Auto merge of #47076 - steveklabnik:update-books, r=frewsxcv

bors · bors · commit 0296b7165bfa · 2017-12-30T17:04:27.000Z
update books for next release
diff --git a/src/doc/book b/src/doc/book
@@ -1 +1 @@
-Subproject commit 3944d61149fa234ea991b498d4dac4fcec68a80e
+Subproject commit 194eb8d5f1753fb5f4501011cebdc1b585712474
diff --git a/src/doc/nomicon b/src/doc/nomicon
@@ -1 +1 @@
-Subproject commit cfb1f2d7e5eb6143915d5a63afe4cf58e8531c27
+Subproject commit 2f7b05fd5939aa49d52c4ab309b9a47776ba7bd8
diff --git a/src/doc/reference b/src/doc/reference
@@ -1 +1 @@
-Subproject commit 857f2c97c8075d39fa07eb4a404980519faa600a
+Subproject commit 1d791b55b23ec5389fbd5b3cee80db3f8bbdd162
