Update Pro.md

Author: Frooodle

docs/Pro.md

@@ -51,14 +51,15 @@ premium:
   enabled: false # Enable license key checks for pro/enterprise features
 ```
 
+Enter the general license key provided in the email received from purchasing Stirling PDF Pro and change enabled from false to true, then restart the Stirling-PDF instance.
+You should now see logs of your Stirling-PDF instance registering and authenticating the license and enabling the Pro features.
+
 If you need your application to be in a 100% offline air-gapped environment and are unable to authenticate a license key, we also offer a certificate file, which can be provided on request (For enterprise users only) in the format
 ```yaml
 premium:
   key: file:config/cert.crt
   enabled: false # Enable license key checks for pro/enterprise features
 ```
-Enter the general license key provided in the email received from purchasing Stirling PDF Pro and change enabled from false to true, then restart the Stirling-PDF instance.
-You should now see logs of your Stirling-PDF instance registering and authenticating the license and enabling the Pro features.
 
 Under these settings, you will be able to customise other premium features such as