Update overview-what-is-tsi.md

Author: tedvilutis

articles/time-series-insights/overview-what-is-tsi.md

@@ -14,7 +14,7 @@ ms.custom: seodec18
 
 # What is Azure Time Series Insights Gen2
 
-[!INCLUDE (../../../includes/tsi-retirement.md)]
+[!INCLUDE [retirement](../../includes/tsi-retirement.md)]
 
 Azure Time Series Insights Gen2 is an open and scalable end-to-end IoT analytics service featuring best-in-class user experiences and rich APIs to integrate its powerful capabilities into your existing workflow or application.