Add OpenHFT in Spark plugin LICENSE (#1980)
diff --git a/plugins/spark/v3.5/spark/LICENSE b/plugins/spark/v3.5/spark/LICENSE
index 0052b53..920e403 100644
--- a/plugins/spark/v3.5/spark/LICENSE
+++ b/plugins/spark/v3.5/spark/LICENSE
@@ -573,3 +573,11 @@
License: Apache License 2.0 - https://www.apache.org/licenses/LICENSE-2.0.txt
--------------------------------------------------------------------------------
+
+This binary artifact contains OpenHFT.
+
+Copyright: 2014 Higher Frequency Trading http://www.higherfrequencytrading.com
+Project URL: https://github.com/OpenHFT
+License: Apache License 2.0 - https://www.apache.org/licenses/LICENSE-2.0.txt
+
+--------------------------------------------------------------------------------
