a simple markdown editor

app/helpers/merged/view_helper.rb

@@ -13,6 +13,7 @@ module Merged
       text = text.text unless text.is_a?(String)
       return 5 if text.blank?
       rows = (text.length / 50).to_i
+      rows += text.count("\n")
       return 5 if rows < 5
       rows
     end