diff --git a/book/features/custom-launch-button.md b/book/features/custom-launch-button.md
index 4acbf99..8df830b 100644
--- a/book/features/custom-launch-button.md
+++ b/book/features/custom-launch-button.md
@@ -1,4 +1,4 @@
-# Custom Launch Button 
+# Multilingual book
 
 ```{admonition} User types
 :class: tip