Add changelog entry about changelog itself

mokagio · mokagio · commit 8a95b0f1730e · 2022-10-19T20:06:04.000+11:00
diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -46,4 +46,4 @@ _None._
 
 ### Internal Changes
 
-_None._
+- Add this changelog file. [#690]
