It seems that if you use a code block (doesn't seem to matter if it's a 'named' block or not (i.e. javascript, bash, etc)), but if you have:

    ```
    ---
    something here
    ```

Then, it will mess your Markdown up pretty royally! You have to do something like the following:

    ```

    --- (note blank line above)
    then other stuff
    ```

What a mess, but at least I figured it out.