Changed Credits file.

Martin Köditz · Martin Köditz · commit f9a8c5a312f0 · 2021-01-30T14:27:20.000+01:00
diff --git a/CREDITS b/CREDITS
@@ -1,2 +1,5 @@
 InterBase
 Jouni Ahto, Andrew Avdeev, Ard Biesheuvel
+
+Firebird
+You can find the contributors list at https://github.com/FirebirdSQL/php-firebird/graphs/contributors.
