Fix blockquote line numbers

close #86

lib/rules_block/blockquote.js

@@ -116,7 +116,7 @@ module.exports = function blockquote(state, startLine, endLine, silent) {
     level: --state.level
   });
   state.parentType = oldParentType;
-  lines[1] = state.lines;
+  lines[1] = state.line;
 
   // Restore original tShift; this might not be necessary since the parser
   // has already been here, but just to make sure we can do that.