generate release notes (#7803)

Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>

documentation/releaseNotes/releaseNotes.v9.0.1.md

@@ -0,0 +1,7 @@
+Today we are releasing the 9.0.1 build of the `dotnet monitor` tool. This release includes:
+
+- Fixed an issue with custom tags not showing up for `Histogram` and `UpDownCounter` meters ([#7745](https://github.com/dotnet/dotnet-monitor/pull/7745))
+
+
+
+If you would like to provide additional feedback to the team [please fill out this survey](https://aka.ms/dotnet-monitor-survey?src=rn).