Update README.md

Add @BehindTheMath's SQL port.

Author: KosherJava

README.md

@@ -60,6 +60,7 @@ The KosherJava Zmanim API has been ported to:
 * PHP - https://github.com/zachweix/PhpZmanim/
 * Dart / Flutter - https://github.com/yakir8/kosher_dart
 * Go - https://github.com/vlipovetskii/go-zmanim
+* SQL - https://github.com/BehindTheMath/zmanim-sql (alpha quality).
 
 ZmanCode Desktop App
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