[ZEPPELIN-5319] Incorrect markdown in the documentation of sap interpreter
[ZEPPELIN-5319] Incorrect markdown in the documentation of sap interpreter

### What is this PR for?
Fix incorrect example code display at "/interpreter/sap.html"

### What type of PR is it?
[Documentation]

### What is the Jira issue?
* https://issues.apache.org/jira/browse/ZEPPELIN-5319

### How should this be tested?
* Checked modified document locally

### Screenshots (if appropriate)
![image](https://user-images.githubusercontent.com/8870299/114196484-5fffc180-998c-11eb-9fb3-d23e1a01625c.png)

### Questions:
* Does the licenses files need update? No
* Is there breaking changes for older versions? No
* Does this needs documentation? No

Author: cuspymd <cuspymd@gmail.com>

Closes #4091 from cuspymd/fix-sap-doc and squashes the following commits:

7351ba725 [cuspymd] Fix incorrect example code display

jongyoul/zeppelin,prabhjyotsingh/zeppelin,jongyoul/zeppelin,jongyoul/zeppelin,apache/zeppelin,apache/zeppelin,jongyoul/incubator-zeppelin,zjffdu/zeppelin,fogbeam/zeppelin_mirror,prabhjyotsingh/zeppelin,fogbeam/zeppelin_mirror,apache/zeppelin,jongyoul/incubator-zeppelin,apache/zeppelin,apache/incubator-zeppelin,apache/incubator-zeppelin,jongyoul/incubator-zeppelin,hammertank/zeppelin,apache/incubator-zeppelin,prabhjyotsingh/zeppelin,jongyoul/incubator-zeppelin,zjffdu/zeppelin,fogbeam/zeppelin_mirror,zjffdu/zeppelin,fogbeam/zeppelin_mirror,hammertank/zeppelin,prabhjyotsingh/zeppelin,zjffdu/zeppelin,prabhjyotsingh/zeppelin,jongyoul/incubator-zeppelin,prabhjyotsingh/zeppelin,jongyoul/zeppelin,zjffdu/zeppelin,zjffdu/zeppelin,jongyoul/zeppelin,apache/incubator-zeppelin,prabhjyotsingh/zeppelin,hammertank/zeppelin,apache/zeppelin,jongyoul/incubator-zeppelin,fogbeam/zeppelin_mirror,zjffdu/zeppelin,jongyoul/zeppelin,fogbeam/zeppelin_mirror,apache/incubator-zeppelin,apache/zeppelin,apache/zeppelin,hammertank/zeppelin,jongyoul/zeppelin,hammertank/zeppelin,hammertank/zeppelin,apache/incubator-zeppelin,hammertank/zeppelin,fogbeam/zeppelin_mirror