Merge pull request #245671 from seesharprun/patch-1

Cosmos DB | Update `CONCAT` metadata description

Author: prmerger-automator[bot]

articles/cosmos-db/nosql/query/concat.md

@@ -1,7 +1,7 @@
 ---
 title: CONCAT
 titleSuffix: Azure Cosmos DB for NoSQL
-description: An Azure Cosmos DB for NoSQL system function that returns
+description: An Azure Cosmos DB for NoSQL system function that returns a string concatenated from two or more strings.
 author: jcodella
 ms.author: jacodel
 ms.reviewer: sidandrews