Github user Leemoonsoo commented on the issue:
https://github.com/apache/zeppelin/pull/2135
@dlukyanov Thanks for the update and explanation on behavior.
Inside of docs directory, groovy.md will need some header to be compiled
with Jekyll. For example,
[spark.md](https://raw.githubusercontent.com/apache/zeppelin/master/docs/interpreter/spark.md)
```
---
layout: page
title: "Apache Spark Interpreter for Apache Zeppelin"
description: "Apache Spark is a fast and general-purpose cluster computing
system. It provides high-level APIs in Java, Scala, Python and R, and an
optimized engine that supports general execution engine."
group: interpreter
---
<!--
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.
-->
{% include JB/setup %}
```
Menu in docs also need link to groovy.
https://github.com/apache/zeppelin/blob/master/docs/_includes/themes/zeppelin/_navigation.html#L56
`.travis.yml` is updated since this branch is created. And we need add
`!groovy` in [this
line](https://github.com/apache/zeppelin/blob/master/.travis.yml#L40). Could
you handle it?
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