Update blazor document

docs/en/Tutorials/Part-2.md

@@ -604,6 +604,7 @@ Open the `Books.razor` and replace the content as the following:
         <DataGrid TItem="BookDto"
                   Data="Entities"
                   ReadData="OnDataGridReadAsync"
+                  CurrentPage="CurrentPage"
                   TotalItems="TotalCount"
                   ShowPager="true"
                   PageSize="PageSize">

docs/en/Tutorials/Part-3.md

@@ -1429,6 +1429,7 @@ Here the complete code to create the book management CRUD page, that has been de
         <DataGrid TItem="BookDto"
                   Data="Entities"
                   ReadData="OnDataGridReadAsync"
+                  CurrentPage="CurrentPage"
                   TotalItems="TotalCount"
                   ShowPager="true"
                   PageSize="PageSize">

docs/en/Tutorials/Part-9.md

@@ -868,6 +868,7 @@ Create a new Razor Component Page, `/Pages/Authors.razor`, in the `Acme.BookStor
         <DataGrid TItem="AuthorDto"
                   Data="AuthorList"
                   ReadData="OnDataGridReadAsync"
+                  CurrentPage="CurrentPage"
                   TotalItems="TotalCount"
                   ShowPager="true"
                   PageSize="PageSize">