Fix: Harmonize files by adding new line if nedded

src/dev/main.md

@@ -1 +1 @@
-# Dev
+# Dev

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)
-```
+```

src/dev/web/javascript/main.md

@@ -1 +1 @@
-# js
+# js

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.
-
-