Update Confluence section

The original text was confusing.  Refactored to attempt to make more sense.

Author: computamike

DOCUMENTATION/content/documentation/index.md

@@ -1054,7 +1054,7 @@ docker-compose up -d confluence
 
 2 - Open your browser and visit the localhost on port **8090**:  `http://localhost:8090`
 
-**Note:** You can you trial version and then you have to buy a licence to use it.
+**Note:** Confluence is a licensed application - an evaluation licence can be obtained from Atlassian.
 
 You can set custom confluence version in `CONFLUENCE_VERSION`. [Find more info in section 'Versioning'](https://hub.docker.com/r/atlassian/confluence-server/)