update manager field

Author: ghogen

docs/profiling/dotnet-counters-tool.md

@@ -8,7 +8,7 @@ helpviewer_keywords:
   - "dotnet, counters, profiling"
 author: MikeJo5000
 ms.author: mikejo
-manager: AndSter
+manager: jmartens
 ms.workload:
   - "multiple"
 ---