Update CMSKit docs according to readonly support

docs/en/Modules/Cms-Kit/Comments.md

@@ -53,6 +53,7 @@ The comment system provides a commenting [widget](../../UI/AspNetCore/Widgets.md
 {
   entityType = "Product",
   entityId = "...",
+  isReadOnly = false,
   referralLinks  = new [] {"nofollow"}
 })
 ```

docs/en/Modules/Cms-Kit/Ratings.md

@@ -41,7 +41,8 @@ The ratings system provides a rating widget to allow users send ratings to resou
 @await Component.InvokeAsync(typeof(RatingViewComponent), new
 {
   entityType = "Product",
-  entityId = "entityId"
+  entityId = "entityId",
+  isReadOnly = false
 })
 ```