Update README.md

Co-authored-by: Jakub Scholz <www@scholzj.com>

README.md

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-# Access Operator for Apache Kafka®
+# Access Operator for Strimzi
 
 Kubernetes operator that collects connection details for an [Apache Kafka®](https://kafka.apache.org) cluster that is managed by the Strimzi cluster 
 operator into a Kubernetes secret. (See [proposal #33](https://github.com/strimzi/proposals/blob/main/033-service-binding.md) for more details.)