generate: add source for release notes across versions
Since apparently Kafka's website likes to delete historical release
notes.
@@ -5,6 +5,7 @@ package main
// Add CanVersion or something to check whether features are being used
// on an unsupported version.
// Can have -v0 mean up to v0 (max version)
+// https://allmychanges.com/p/java/kafka/ <- finally a good changelog source.
import (
"bytes"
