C#: Add change note.

michaelnebel · michaelnebel · commit 57e31c11dad0 · 2022-11-09T14:54:37.000+01:00
diff --git a/csharp/ql/lib/change-notes/2022-11-09-modelsasdataextensions.md b/csharp/ql/lib/change-notes/2022-11-09-modelsasdataextensions.md
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+---
+category: minorAnalysis
+---
+* The `[Summary|Sink|Source]ModelCsv` classes have been deprecated and Models as Data models are defined as data extensions instead.

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 +---
 +category: minorAnalysis
 +---
 +* The `[Summary|Sink|Source]ModelCsv` classes have been deprecated and Models as Data models are defined as data extensions instead.