String: NixString: add note

Anton-Latukha · Anton-Latukha · commit c520798eec0b · 2021-07-18T14:53:50.000+03:00
diff --git a/src/Nix/String.hs b/src/Nix/String.hs
@@ -104,6 +104,7 @@ type WithStringContext = WithStringContextT Identity
 
 -- ** NixString
 
+--  2021-07-18: NOTE: It should be Context -> Contents.
 data NixString =
   NixString
     { nsContents :: !Text
