Bold text not saved

[artkpv]

Steps:

1. With let g:evervim_usemarkdown=1
2. I save a note with evervim with the following:

   ...
    **ACID**
   ...

1. It displays the bold text.
2. I reopen it with evervim
3. I add empty line
4. Press :w. It is saved.
5. I open it in evernote under windows
6. I reopen it in evervim. Result:

    ...
    ACID
    ...

[mcepl]

Duplicate of #28