Removes code blocks in markdown unless then are separated

Test to Markdown problem:

```
### test1

### test2

### test3
```

will be updated to (even if test1, test2 and test3 exist)
to 

```
### test3
    test3 code block
```

Have to separate individual functions using `---` like this

```
### test1

---
### test2

---
### test3
```
