Include a copy of GNU GPLv3 license

BabelBot.py

 #! /usr/bin/python3
 # coding: utf-8
 
+######
+##
+## BabelBot, a cool cross-network translating IRC bot.
+## Copyright (c) 2021 Sébastien “Elzen” Dufromentel
+##
+## 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 <http://www.gnu.org/licenses/>.
+##
+######
+
 import sys
 import ssl
 import json