update readme with release (#460)

Author: mensfeld

README.md

@@ -163,6 +163,7 @@ bundle exec rake produce_messages
 
 | rdkafka-ruby | librdkafka |
 |-|-|
+| 0.16.0 (2024-06-13) | 2.3.0 (2023-10-25) |
 | 0.15.0 (2023-12-03) | 2.3.0 (2023-10-25) |
 | 0.14.0 (2023-11-21) | 2.2.0 (2023-07-12) |
 | 0.13.0 (2023-07-24) | 2.0.2 (2023-01-20) |