Hint empty releases to the index template file #37
Description
It can be confusing for users in the generated index.adoc to list releases without any changes in them. This becomes a problem in particular when new releases are made. Consider Log4j has just released version 2.20.0 and users expect /release-notes/index.html to show 2.20.0 at the top. Whereas, 2.x.x takes the top spot and its content is practically empty. To mitigate this, the dictionary passed to the index template file (i.e., .index.adoc.ftl) can be enriched with a boolean empty field and users can decide whether to disclose empty releases or not.