Apply suggestion from @dmitry-eliseev-devexpress

Co-authored-by: Dmitry Eliseev <81766219+dmitry-eliseev-devexpress@users.noreply.github.com>

Author: NickVolynkin

README.md

@@ -124,7 +124,7 @@ begin
 end;
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-### Step 4: Store Report Layout Data in the Dataset
+### Step 4: Store Report Layouts in a Dataset
 
 When a user edits and saves a report in the Report Designer,
 the value of [TdxReport.Layout] changes and an [OnLayoutChanged] event is called.