Add LICENSE information to decoy ranking script

experiments/test_templates_openfold.py

 # Adapted from https://www.github.com/jproney/AF2Rank/blob/master/test_templates.py
+
+# Copyright 2024 AlQuraishi Laboratory
+# 
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 import sys
 import os
 import argparse