README.md in excel-esv-0.0.7 vs README.md in excel-esv-1.0.0

@@ -81,9 +81,10 @@
   include ESV::RailsController  # for send_excel
 
   def show
     data = MyExcelDocument.generate("Rails")
     send_excel(data)
+    # or: send_excel(data, filename: "myfilename.xls")
   end
 
   def another_example
     respond_to do |format|
       format.html { … }