Update install-configure.md

Author: sofietoft

15/umbraco-deploy/installation/install-configure.md

@@ -293,7 +293,7 @@ For example, in `appsettings.json`:
 ```
 
 {% hint style="info" %}
-If using environment variables rather than a JSON file for configuration you may run into issues with the periods used in the product key.  If so, an underscore can be used instead:
+You might run into issues when using a period in the product name when using environment variables. Use an underscore in the product name instead, to avoid problems.
 
 ```json
 "Umbraco_Deploy_OnPrem": "YOUR_LICENSE_KEY"