[BUG: Internal] Third column allways rendered as code

[JojoBr0]

Describe the bug

It looks like if you put more than two columns in a row the third would be rendered as normal code.

Steps To Reproduce

Use:

````col
```col-md
# one

two

# three

Result:
![obsidian_columns_bug](https://user-images.githubusercontent.com/92635650/180425967-2d94d7cb-b485-4116-9f56-94a560b8f1e7.jpg)

## **Expected behavior**
Every column should be normal text with markdown support.

### **System Info**
OS: Windows
Obsidian Version: 0.15.6
Plugin Version: 1.1.8

## **Additional information or notes**
I also found out a little workaround:
If you put ```` ```col-md```` in every **second** header it shows normal:
`````md
````col
```col-md
# one

two

# three

[tnichols217]

You're using incorrect syntax, each column should be wrapped with a col-md codeblock like this:

````col
```col-md
# one

# two

# three