diff --git a/README.md b/README.md
index 55531c2..d0ab241 100644
--- a/README.md
+++ b/README.md
@@ -2,4 +2,24 @@ Google Analytics
 ================
 
 This extension inserts the Google Analitics tracker code in your pages. Edit the `config.yml` file so
-it contains the correct 'webproperty-id'.
+it contains the correct 'webproperty-id', 'ga_profile_id', 'key_file_location', and 'service_account_email'.
+(If upgrading to new version copy the missing configuration from the distributed yml file to get the new settings)
+
+Use the developers console and replace the values with your service account email, and absolute location of your key file.
+You can generate the needed details at https://console.developers.google.com.
+Here's a quick 'n' dirty step-by-step:
+1. Go to the Google API Console and create a new app/project
+2. In the Services tab, flip the Google Analytics switch to on
+3. Click the credentials tab
+4. Click 'Service Account Key'
+5. Select 'New Service Account' give it a name and remember the email it generates for you. That is the 'service_account_email'
+6. Select the p12 format
+7. Download the key and then upload it to your server.
+8. Visit your google analytics admin and add the service account email under User Management with the 'read & analyze' permissions
+9. Update the google analytics config.yml with the key file location and service account email. **
+
+** The p12 file didn't work with the version of google code in this extension you may have to convert it to a pem file with this command
+
+openssl pkcs12 -in ga-key-file.p12 -out ga-key-file.pem -nodes
+
+The command will ask for the password which is 'notasecret'.