Update 3.0.0.md

Author: andreasrosdal

changelogs/3.0.0.md

@@ -6,6 +6,8 @@ This means that source code using OpenPDF must be migrated to use import stateme
 * Full PDF 2.0 support in OpenPDF. This is a breaking API change where all version related methods now use
 String instead of char as method parameters. Default version is now PDF 2.0.
 
-* Add batch utility classes which uses Java 21 virtual threads: Html2PdfBatchUtils and PdfBatchUtils.
+* Added Html2PdfBatchUtils and PdfBatchUtils, new batch utilities built on Java 21 virtual threads. 
+These APIs improve throughput for HTML→PDF rendering and common PDF tasks such as merge, split, watermark, and encrypt.
+