README.md in s3_website-2.1.3 vs README.md in s3_website-2.1.4

- old
+ new

@@ -16,10 +16,10 @@
 ## Install
 
     gem install s3_website
 
 s3_website needs both [Ruby](https://www.ruby-lang.org/en/downloads/)
-and [Java](http://java.com) to run.
+and [Java](http://java.com) to run. (S3_website is partly written in Scala, hence the need for Java.)
 
 ## Usage
 
 Here's how you can get started:
 