MINOR: Add to upgrade.html file
Reviewers: Matthias J. Sax
<a href="https://cwiki.apache.org/confluence/display/KAFKA/KIP-584%3A+Versioning+scheme+for+features">KIP-584</a>
provides a flexible and operationally easy solution for client discovery, feature gating and rolling upgrades using a single restart.
</li>
+ <li>
+ The ability to print record offsets and headers with the <code>ConsoleConsumer</code> is now possible
+ via <a href="https://cwiki.apache.org/confluence/display/KAFKA/KIP-431%3A+Support+of+printing+additional+ConsumerRecord+fields+in+DefaultMessageFormatter">KIP-431</a>
+ </li>
<li>
The addition of <a href="https://cwiki.apache.org/confluence/display/KAFKA/KIP-554%3A+Add+Broker-side+SCRAM+Config+API">KIP-554</a>
continues progress towards the goal of Zookeeper removal from Kafka. The addition of KIP-554
