Markdown highlighting inside Julia documentation block

[notinaboat]

The patch below adds highlighting inside Julia documentation block.
(first time editing a vim syntax file, so not sure if it's correct)

diff --git a/syntax/julia.vim b/syntax/julia.vim
index 9643792..044e41b 100644
--- a/syntax/julia.vim
+++ b/syntax/julia.vim
@@ -70,6 +70,15 @@ let s:operators = '\%(' . '\.\%([-+*/^÷%|&!]\|//\|\\\|<<\|>>>\?\)\?=' .

 syn case match

+syntax region juliadocCode matchgroup=juliadocCodeDelimiter start="`" end="`" concealends display oneline
+syntax region juliadocCode matchgroup=juliadocCodeDelimiter start="^\s*```.*$" end='^\s*```' concealends
+syntax region juliadocCode start="    \|\t" end="$" contained
+syntax region juliadocH1 matchgroup=juliadocHeadingDelimiter start="##\@!"      end="$" concealends display oneline
+syntax region juliadocH2 matchgroup=juliadocHeadingDelimiter start="###\@!"     end="$" concealends display oneline
+syntax region juliadocH3 matchgroup=juliadocHeadingDelimiter start="####\@!"    end="$" concealends display oneline
+syntax region juliadocH4 matchgroup=juliadocHeadingDelimiter start="#####\@!"   end="$" concealends display oneline
+syntax cluster juliaDocMarkdown     contains=juliadocCode,juliadocH1,juliadocH2,juliadocH3,juliadocH4
+
 syntax cluster juliaExpressions                contains=@juliaParItems,@juliaStringItems,@juliaKeywordItems,@juliaBlocksItems,@juliaTypesItems,@juliaConstItems,@juliaMacroItems,@juliaSymbolItems,@juliaOperatorItems,@juliaNumberItems,@juliaCommentItems,@juliaErrorItems
 syntax cluster juliaExprsPrintf                contains=@juliaExpressions,@juliaPrintfItems

@@ -278,7 +287,7 @@ syntax region  juliatextString              matchgroup=juliaStringDelim start=+\<text\z("\("
 syntax region  juliahtmlString         matchgroup=juliaStringDelim start=+\<html\z("\(""\)\?\)+ skip=+\%(\\\\\)*\\"+ end=+\z1+ contains=@juliaSpecialCharsRaw
 syntax region  juliaint128String       matchgroup=juliaStringDelim start=+\<u\?int128\z("\(""\)\?\)+ skip=+\%(\\\\\)*\\"+ end=+\z1+ contains=@juliaSpecialCharsRaw

-syntax region  juliaDocString          matchgroup=juliaDocStringDelim fold start=+^"""+ skip=+\%(\\\\\)*\\"+ end=+"""+ contains=@juliaStringVars,@juliaSpecialChars,@juliaSpellcheckDocStrings
+syntax region  juliaDocString          matchgroup=juliaDocStringDelim fold start=+^"""+ skip=+\%(\\\\\)*\\"+ end=+"""+ contains=@juliaDocMarkdown,juliaTodo,@juliaStringVars,@juliaSpecialChars,@juliaSpellcheckDocStrings

 exec 'syntax region  juliaPrintfMacro          contained transparent start="@s\?printf(" end=")\@'.s:d(1).'<=" contains=juliaMacro,juliaPrintfParBlock'
 syntax region  juliaPrintfMacro                contained transparent start="@s\?printf\s\+" end="\ze\%([])};#]\|$\|\<for\>\)" contains=@juliaExprsPrintf,juliaMacro,juliaSymbolS,juliaQuotedParBlockS

[storopoli]

Is there a PR for this?