Github user justinleet commented on the issue:
https://github.com/apache/metron/pull/865
Given that this is a feature branch, I'm sure master will be merged in, but
as a reminder, markdown file headers will be enforced by rat relatively soon
(so any new markdown files in here will need it when master is merged. For
reference it's:
```
<!--
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.
-->
```
---
