docs(dwh): add info on distribution

Author: SamyOubouaziz

pages/data-warehouse/concepts.mdx

@@ -42,6 +42,8 @@ ClickHouse® uses advanced compression algorithms to reduce storage requirements
 
 ClickHouse® supports distributed processing across multiple nodes, allowing it to handle extremely large datasets efficiently and scale horizontally. This architecture enables ClickHouse® to distribute data and queries across a cluster, improving performance and reliability by leveraging the combined resources of all nodes.
 
+Refer to the official [ClickHouse® documentation](https://clickhouse.com/docs/engines/table-engines/special/distributed) for more information on query processing distribution.
+
 ## Horizontal scaling
 
 Horizontal scaling refers to the process of adding more nodes to the cluster to increase its capacity and performance. This approach allows the cluster to handle larger datasets and higher query loads by distributing the data and processing tasks across additional nodes. Data Warehouse for ClickHouse® deployments [scale automatically](#autoscaling) according to the incoming workload.