Update Leviathan0.md

Author: WildSaul

Leviathan/Leviathan0.md

@@ -1,9 +1,9 @@
 ### Level 0
-###### User: *leviathan0* ; Password: *leviathan0*
+> User: *leviathan0* ; Password: *leviathan0*
 ```
 ssh leviathan0@leviathan.labs.overthewire.org -p 2223 
 ```
-Mật khẩu cho level tiếp theo nằm trong file `bookmarks.html` trong thư mục `.backups`:
+##### Mật khẩu cho level tiếp theo nằm trong file `bookmarks.html` trong thư mục `.backups`:
 ```
 $ cat bookmarks | grep pass
 ... This will be fixed later, the password for leviathan1 is PPIfmI1qsA" ADD_DATE="1155384634" LAST_CHARSET="ISO-8859-1" ID="rdf:#$2wIU71">password to leviathan1</A>