update v10 release notes to 'in flight'

Author: SibonayK

articles/storage/files/storage-files-release-notes.md

@@ -20,7 +20,7 @@ The following versions are supported for the Azure File Sync agent:
 
 | Milestone | Agent version number | Release date | Status |
 |----|----------------------|--------------|------------------|
-| V10 Release - [KB4522359](https://support.microsoft.com/en-us/help/4522409/azure-file-sync-agent-v10-release-march-2020)| 10.0.0.0 | April 9, 2020 | Supported |
+| V10 Release - [KB4522359](https://support.microsoft.com/en-us/help/4522409/azure-file-sync-agent-v10-release-march-2020)| 10.0.0.0 | April 9, 2020 | In flight |
 | December 2019 update rollup - [KB4522360](https://support.microsoft.com/help/4522360)| 9.1.0.0 | December 12, 2019 | Supported |
 | V9 Release - [KB4522359](https://support.microsoft.com/help/4522359)| 9.0.0.0 | December 2, 2019 | Supported |
 | V8 Release - [KB4511224](https://support.microsoft.com/help/4511224)| 8.0.0.0 | October 8, 2019 | Supported |