diff -rN -u old-darcs-book/en/04-happy-little-accidents.md new-darcs-book/en/04-happy-little-accidents.md
--- old-darcs-book/en/04-happy-little-accidents.md	2024-11-24 04:30:57.593969394 +0000
+++ new-darcs-book/en/04-happy-little-accidents.md	2024-11-24 04:30:57.593969394 +0000
@@ -19,7 +19,7 @@
 extra lives :)
 
 Reverting changes
-=================
+-----------------
 
 The most obvious thing that might go wrong in your development process is that
 you have a lot of changes in your working directory and you have decided that
@@ -100,7 +100,7 @@
 changes in your working directory.
 
 Unrevert
-========
+--------
 
 Even when correcting mistakes we are bound to make even more, thankfully `darcs`
 still has got our back with `darcs unrevert`. Whenever we revert something