Added bullet character to those that mark a list item
Added bullet character to those that mark a list item

This is not in the specification but a very reasonable thing to do.

dudb/CommonMark.NET,dudb/CommonMark.NET,Mosoc/CommonMark.NET,lostfictions/CommonMark.NET,laedit/CommonMark.NET,dut3062796s/CommonMark.NET,dut3062796s/CommonMark.NET,laedit/CommonMark.NET,AMDL/CommonMark.NET,lostfictions/CommonMark.NET,AMDL/CommonMark.NET,Mosoc/CommonMark.NET