Markdown notices flattens nestsed lists

[deorcost]

Markdown notices is flattening my nested lists and I'm not sure why.

The snippet of markdown code below

1.  **Posture**
     1.  **Make yourself as comfortable as possible with your back straight.** Do this whether you sit on a chair or a cushion on the floor. 
     2.  **Get your back, neck, and head in alignment, front-to-back and side-to-side.**
2.  **Relax**
     1.  **While maintaining a straight back, release any tension in the body.**
     2.  **Relax your mind.** 

with Markdown notices renders as

1.  **Posture**
2.  **Make yourself as comfortable as possible with your back straight.** Do this whether you sit on a chair or a cushion on the floor. 
3.  **Get your back, neck, and head in alignment, front-to-back and side-to-side.**
4.  **Relax**
5.  **While maintaining a straight back, release any tension in the body.**
6.  **Relax your mind.** 

whereas without markdown notices, it renders as

1.  **Posture**
     a.  **Make yourself as comfortable as possible with your back straight.** Do this whether you sit on a chair or a cushion on the floor. 
     b.  **Get your back, neck, and head in alignment, front-to-back and side-to-side.**
2.  **Relax**
     a.  **While maintaining a straight back, release any tension in the body.**
     b.  **Relax your mind.** 

Is there anyway to get the nested lists to work properly?

Thanks,

Sean