md2html: Support hrefs

md2html

@@ -59,6 +59,7 @@ function inline(text) {
   text = gensub(/\*\*([^\*]*)\*\*/, "<strong>\\1</strong>", "g", text)
   text = gensub(/\*([^\*]*)\*/, "<em>\\1</em>", "g", text)
   text = gensub(/`([^`]*)`/, "<code>\\1</code>", "g", text)
+  text = gensub(/\[(.*)\]\((.*)\)/, "<a href=\"\\2\">\\1</a>", "g", text) 
   return text
 }