diff --git a/book.toml b/book.toml
index c470dab..9b3ef79 100644
--- a/book.toml
+++ b/book.toml
@@ -1,10 +1,14 @@
 [book]
+title = "Dev Tools"
 authors = ["Mo Bitar"]
+descriptions = "A 5 days course about development tools"
 language = "en"
 multilingual = false
-src = "src"
-title = "Dev Tools"
+
+[rust]
+edition = "2021"
 
 [output.html]
 git-repository-url = "https://codeberg.org/mo8it/dev-tools"
 git-repository-icon = "fa-code-fork"
+edit-url-template = "https://codeberg.org/mo8it/dev-tools/src/branch/main/{path}"