changed regex to allow parenthesis in link names

markedjs#600

Author: shiren

lib/marked.js

@@ -464,7 +464,7 @@ var inline = {
 };
 
 inline._inside = /(?:\[[^\]]*\]|[^\[\]]|\](?=[^\[]*\]))*/;
-inline._href = /\s*<?([\s\S]*?)>?(?:\s+['"]([\s\S]*?)['"])?\s*/;
+inline._href = /\s*<?([\s\S]*)>?(?:\s+['"]([\s\S]*?)['"])?\s*/;
 
 inline.link = replace(inline.link)
   ('inside', inline._inside)