Added license header for README.md
diff --git a/README.md b/README.md
index bbd6aee..2dc7d64 100644
--- a/README.md
+++ b/README.md
@@ -1,3 +1,21 @@
+<!--
+ 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.
+-->
+
## What is Apache Tephra <sup>(TM)</sup>
Apache Tephra provides globally consistent transactions on top of distributed data stores
such as [Apache HBase](https://hbase.apache.org). While HBase provides strong consistency with row- or
@@ -11,4 +29,4 @@
to add cross-row and cross-table transaction support with full ACID semantics.
Please refer to the [Getting Started](http://tephra.incubator.apache.org/GettingStarted.html) guide to
-start using [Apache Tephra](http://tephra.incubator.apache.org).
\ No newline at end of file
+start using [Apache Tephra](http://tephra.incubator.apache.org).
