fixed small omission in readme result reporiting section

README.rdoc

@@ -62,7 +62,7 @@ Result reporting:
   new_account = Hash["type" => "Other"] # Missing required field "name."
   records_to_insert = Array.new
   records_to_insert.push(new_account) # You can add as many records as you want here, just keep in mind that Salesforce has governor limits.
-  result = salesforce.create("Account", records_to_insert)
+  result = salesforce.create("Account", records_to_insert, true) # Result reporting can only be used if wait is set to true
   puts result.success? # false
   puts result.has_errors? # true
   puts result.errors # An indexed hash detailing the errors