exe/helpline in helpline-0.1.3 vs exe/helpline in helpline-0.1.4

@@ -14,10 +14,10 @@
 
 class HelpLine
   LINES = 12
     
   def datafile
-    File.expand_path("~/.helpline")
+    File.expand_path("~/.helpline.json")
   end
   
   def initialize
     @pagedata = {}
     @project = Scrapbox::Project.new("HelpLine")