license header for snakefile

Snakefile

+#   hutspot - a DNAseq variant calling pipeline
+#   Copyright (C) 2017-2019, Sander Bollen, Leiden University Medical Center
+#
+#   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 <https://www.gnu.org/licenses/>.
+"""
+Main Snakefile for the pipeline. 
+
+:copyright: (c) 2017-2019 Sander Bollen
+:copyright: (c) 2017-2019 Leiden University Medical Center
+:license: AGPL-3.0
+"""
+
 import json
 from functools import partial
 from os.path import join, basename