Update apache-spark-performance.md

Author: santhoshravindran7

articles/synapse-analytics/spark/apache-spark-performance.md

@@ -178,6 +178,7 @@ MAX(AMOUNT) -> MAX(cast(AMOUNT as DOUBLE))
 
 ## Next steps
 
+- [Learn about Azure Synapse runtimes for Apache Spark](./apache-spark-version-support.md)
 - [Tuning Apache Spark](https://spark.apache.org/docs/2.4.5/tuning.html)
 - [How to Actually Tune Your Apache Spark Jobs So They Work](https://www.slideshare.net/ilganeli/how-to-actually-tune-your-spark-jobs-so-they-work)
 - [Kryo Serialization](https://github.com/EsotericSoftware/kryo)