added README and LICENSE

template.tex

@@ -1,3 +1,18 @@
+% wlan-qrcode
+% Copyright (C) 2025  Johannes "Jo" Erwerle
+
+% 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/>.
 \documentclass[a4paper]{article}
 
 \usepackage{qrcode}