Rollup merge of rust-lang#58350 - petrochenkov:embed, r=frewsxcv

Mark-Simulacrum · web-flow · commit 5b74980543bc · 2019-02-10T18:54:02.000+01:00
Fix failing tidy (line endings on Windows) Updates to `embedded-book` including rust-embedded/book#127.
diff --git a/src/doc/embedded-book b/src/doc/embedded-book
@@ -1 +1 @@
-Subproject commit d663113d1d9fbd35f1145c29f6080a6350b7f419
+Subproject commit bd2778f304989ee52be8201504d6ec621dd60ca9
