diff --git a/LICENSE b/LICENSE
index c1015fb..5568253 100644
--- a/LICENSE
+++ b/LICENSE
@@ -10,4 +10,4 @@
             DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE
    TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
 
-  0. You just DO WHAT THE FUCK YOU WANT TO.
\ No newline at end of file
+  0. You just DO WHAT THE FUCK YOU WANT TO.
diff --git a/book.toml b/book.toml
index a5cc4fa..3774c9c 100644
--- a/book.toml
+++ b/book.toml
@@ -1,4 +1,4 @@
 [book]
 title = "Brain"
 author = "Wilfried OLLIVIER"
-description = "My draft notebook"
\ No newline at end of file
+description = "My draft notebook"
diff --git a/src/dev/main.md b/src/dev/main.md
index 3727388..a94cef3 100644
--- a/src/dev/main.md
+++ b/src/dev/main.md
@@ -1 +1 @@
-# Dev
\ No newline at end of file
+# Dev
diff --git a/src/dev/regex/main.md b/src/dev/regex/main.md
index 26c1fc6..58cbd8e 100644
--- a/src/dev/regex/main.md
+++ b/src/dev/regex/main.md
@@ -10,4 +10,4 @@ Match and capture **ONLY** the number of cats and dogs using ?:, for _non captur
 
 ```txt
 (\d+) (?:cats|dogs)
-```
\ No newline at end of file
+```
diff --git a/src/dev/web/javascript/main.md b/src/dev/web/javascript/main.md
index 4ca3669..d7d07d1 100644
--- a/src/dev/web/javascript/main.md
+++ b/src/dev/web/javascript/main.md
@@ -1 +1 @@
-# js
\ No newline at end of file
+# js
diff --git a/src/structure/intro.md b/src/structure/intro.md
index 424ac70..c569483 100644
--- a/src/structure/intro.md
+++ b/src/structure/intro.md
@@ -29,5 +29,3 @@ Then I decide to give this concept a shot.
     TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
 
      0. You just DO WHAT THE FUCK YOU WANT TO.
-
-