Applied license guidelines and added Credits section listing libraries/tools used.

generator/main.py

@@ -1,9 +1,24 @@
 #!/usr/bin/python3
 
-""" Run as:
-python3 thisscript.py "/bundles/directory" "/website/template/root/directory/
-All sub-directories of bundles directory will be scanned for activity
-bundles i.e. .xo files.
+""" Sugar Activities App Store (SAAS)
+https://github.com/free-libre-software/sugarappstore
+https://radii.dev/sugarlabs/appstore
+Copyright 2020 Manish <sugar@radii.dev>
+
+This file is part of "Sugar Activities App Store" aka "SAAS".
+
+SAAS 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.
+
+SAAS 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 SAAS.  If not, see <https://www.gnu.org/licenses/>.
 """
 
 import glob