Merge branch 'master' of https://gitbox.apache.org/repos/asf/incubator-singa
diff --git a/doc/en/releases/RELEASE_NOTES_2.0.0.md b/doc/en/releases/RELEASE_NOTES_2.0.0.md
index 3a9159c..b50e288 100644
--- a/doc/en/releases/RELEASE_NOTES_2.0.0.md
+++ b/doc/en/releases/RELEASE_NOTES_2.0.0.md
@@ -1,3 +1,22 @@
+<!--
+ Licensed to the Apache Software Foundation (ASF) under one
+ or more contributor license agreements. See the NOTICE file
+ distributed with this work for additional information
+ regarding copyright ownership. The ASF licenses this file
+ to you 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.
+-->
+
# singa-incubating-2.0.0 Release Notes
---
diff --git a/rat-excludes b/rat-excludes
index 0930056..dd28d62 100644
--- a/rat-excludes
+++ b/rat-excludes
@@ -1 +1,3 @@
-rat-excludes
\ No newline at end of file
+rat-excludes
+# Apache Rat cannot recognize the license header in jupyter notebooks
+.*\.ipynb
\ No newline at end of file
