Update book.toml

This specifies the new mdBook syntax (properties under `[book]` table). It also adds the `editor = "ace"` config, which will fix #963. Once rust-lang/mdBook#515 is merged, this won't be necessary.
rust-lang · Dec 21, 2017 · 6c19fef · 6c19fef
1 parent 7e19306
commit 6c19fef
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/book.toml b/book.toml
@@ -1,6 +1,8 @@
+[book]
 title = "Rust By Example"
 description = "A description"
 author = "The Rust Community"
 
 [output.html.playpen]
 editable = true
+editor = "ace"