add copyright notice

scraper_utils.py

@@ -1,3 +1,11 @@
+# Functions common to both scrapers
+# Copyright (C) 2018  Nathan TeBlunthuis
+
+# 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.
+
 # returns an iterator of wiki,url tuples
 import pandas as pd
 from os import makedirs, path