inline code is broken at 'groups' section of Command Line doc

## I'm submitting a...

```
[x] Bug report
[ ] Content update
[ ] Process update (build, deployment, ... )
```

## Type of bug / changes

It's not properly escaping the code here:

<img width="991" alt="Screen Shot 2019-09-18 at 6 40 29 PM" src="https://user-images.githubusercontent.com/1271364/65192059-e7e94800-da43-11e9-9579-68f8d2da0b4f.png">

