C#: Add change note.

michaelnebel · michaelnebel · commit 35793b4de5c5 · 2023-02-20T10:30:11.000+01:00
diff --git a/csharp/ql/lib/change-notes/2023-02-17-filescopedtypes.md b/csharp/ql/lib/change-notes/2023-02-17-filescopedtypes.md
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+---
+category: minorAnalysis
+---
+* C# 11: Added extractor and library support for `file` scoped types.

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 +---
 +category: minorAnalysis
 +---
 +* C# 11: Added extractor and library support for `file` scoped types.