README.md in xeroizer-2.15.5 vs README.md in xeroizer-2.15.6

@@ -110,14 +110,14 @@
 					session[:request_secret], 
 					:oauth_verifier => params[:oauth_verifier] )
 						
 			session[:xero_auth] = {
 					:access_token => @xero_client.access_token.token,
-					:access_key => @xero_client.access_token.key }
+					:access_key => @xero_client.access_token.secret }
 															
-			session.data.delete(:request_token)
-			session.data.delete(:request_secret)
+			session[:request_token] = nil
+            session[:request_secret] = nil
 		end
 		
 		def destroy
 			session.data.delete(:xero_auth)
 		end
@@ -547,9 +547,20 @@
 client = Xeroizer::PublicApplication.new(YOUR_OAUTH_CONSUMER_KEY,
                                          YOUR_OAUTH_CONSUMER_SECRET,
                                          :rate_limit_sleep => 2)
 ```
 
+Logging
+---------------
+
+You can add an optional paramater to the Xeroizer Application initialization, to pass a logger object that will need to respond_to :info. For example, in a rails app:
+
+```ruby
+XeroLogger = Logger.new('log/xero.log', 'weekly')
+client = Xeroizer::PublicApplication.new(YOUR_OAUTH_CONSUMER_KEY,
+                                         YOUR_OAUTH_CONSUMER_SECRET,
+                                         :logger => XeroLogger)
+```
 
 ### Contributors
 Xeroizer was inspired by the https://github.com/tlconnor/xero_gateway gem created by Tim Connor 
 and Nik Wakelin and portions of the networking and authentication code are based completely off 
 this project. Copyright for these components remains held in the name of Tim Connor.