Improve documentation

src/wgfrontend.py

@@ -1,6 +1,30 @@
 #!/usr/bin/env python3
 # -*- coding: utf-8 -*-
 
+"""wgfrontend.py: web-based user interface for configuring WireGuard for roadwarriors."""
+
+"""
+The Towalink Project
+Copyright (C) 2020 Dirk Henrici
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU Affero 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 Affero General Public License for more details.
+
+You should have received a copy of the GNU Affero General Public License
+along with this program.  If not, see <http://www.gnu.org/licenses/>.
+"""
+
+__author__ = "Dirk Henrici"
+__license__ = "AGPL3" # + author has right to release in parallel under different licenses
+__email__ = "towalink.wgfrontend@henrici.name"
+
 
 import setupenv
 import webapp