Edit Details (Vaadin Tutorial) (#4984)

* First draft of Edit Details

* Minor fixes

* Fix broken xref

Author: peholmst

articles/building-apps/forms-data/add-form/loading-and-saving.adoc

@@ -229,7 +229,7 @@ public class ProposalView extends Main {
 <1> Calls `editProposal()` if an item has been selected in the grid.
 <2> Uses a copy-constructor to create a copy of the proposal before binding it, avoiding the risk of stale data in the grid.
 
-If you need a refresher on form binding, buffered mode and write-through mode, see the <<../fields-and-binding#,Fields & Binding>> guide.
+If you need a refresher on form binding, buffered mode and write-through mode, see the <<fields-and-binding#,Fields & Binding>> guide.
 
 // TODO Links to guides about grids and selection via URL parameter
 

articles/getting-started/tutorial/add-data.adoc

@@ -0,0 +1,11 @@
+---
+title: Add Data
+page-title: Create a Dialog for Adding Products | Vaadin Tutorial
+description: 🚧 Work in progress, check back later.
+meta-description: 
+order: 30
+---
+
+= Add Products
+
+🚧 Work in progress, check back later.