fix unordered lists

Author: fmoralesc

syntax/pandoc.vim

@@ -34,7 +34,7 @@ syn region pdcLaTeXCodeBlock matchgroup=Delimiter start=/^```{=latex}/ end=/```\
 syn region pdcBlockQuote start=/^\s\{,3}>\s\?/ end=/[[:print:]]\(\n\s*\n\)\@=/ keepend
 
 " Lists
-syn region pdcUList start=/^>\=\s*[*=-]\ze\s*[[:print:]]$/ end=/[[:print:]]\(\n\s*\n\)\@=/ keepend
+syn region pdcUList start=/^\s*[*=-][*=-]\@!\ze\s*[[:print:]]/ end=/[[:print:]]\(\n\s*\n\)\@=/ keepend
 syn region pdcOList start=/^(\?\(\d\+\|\l\|\#\|@.\{-}\|x\=l\=\(i\{,3}[vx]\=\)\{,3}c\{,3}\)[.)]/ end=/[[:print:]]\(\n\s*\n\)\@=/ keepend
 
 " Definitions