added proper headers to source files

init.sh

@@ -1,7 +1,13 @@
 #!/bin/bash
+# ------------------------------------------------------------------------------
 # Init: initialise a computer and conform it
 # Copyright (c) 2019-2021 Geoffray Levasseur <fatalerrors@geoffray-levasseur.org>
-
+# ------------------------------------------------------------------------------
+# This file is distributed under 3-clause BSD license.
+# The complete license agreement can be obtained at:
+# https://opensource.org/licenses/BSD-3-Clause
+# ------------------------------------------------------------------------------
+ 
 # trace ERR through pipes
 set -o pipefail