fix: correct copyright and licensing information in script

Author: 06ergin06

script.sh

@@ -1,4 +1,18 @@
 #!/bin/bash
+# Copyright (C) 2025 İbrahim Hakkı Ergin <ibrahimh.ergin@gmail.com>
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see <https://www.gnu.org/licenses/>.s
 
 red="\e[31m"
 green="\e[32m"