added note regarding origin java version

Author: source-c

README.adoc

@@ -8,6 +8,8 @@ image:https://img.shields.io/github/v/tag/fern-flower-lab/sqlg-clj?style=for-the
 image:https://img.shields.io/github/last-commit/fern-flower-lab/sqlg-clj?style=for-the-badge[GitHub last commit]
 image:https://img.shields.io/github/v/release/fern-flower-lab/sqlg-clj?style=for-the-badge[GitHub release (latest by date)]
 
+WARNING: Origin's library uses J17 for releases (at least for 3.0.x versions), so independently on this Clojure library build you will be forced to use that version too.
+
 == Supported DBs
 
 . PostgreSQL