Update how-to-data-flow-dedupe-nulls-snippets.md

-------
cc: @kromerm

Author: jonburchel

articles/data-factory/how-to-data-flow-dedupe-nulls-snippets.md

@@ -6,7 +6,7 @@ ms.author: makromer
 ms.service: data-factory
 ms.subservice: tutorials
 ms.topic: conceptual
-ms.date: 09/30/2020
+ms.date: 01/31/2022
 ---
 
 # Dedupe rows and find nulls by using data flow snippets
@@ -61,4 +61,4 @@ By using code snippets in mapping data flows, you can easily perform common task
 
 ## Next steps
 
-* Build the rest of your data flow logic by using mapping data flows [transformations](concepts-data-flow-overview.md).
+* Build the rest of your data flow logic by using mapping data flows [transformations](concepts-data-flow-overview.md).