Add example module linl

development/components/form/_index.md

@@ -204,10 +204,12 @@ public function install()
 
 public function hookActionProductFormDataProviderDefaultData(array $params): void
 {
-    // define a default value for field
+    // define default values for fields in $params["data"]
 }
 ```
 
+This hook has been implemented as an example in our [modules examples repository - demoformdataproviders](https://github.com/PrestaShop/example-modules/tree/master/demoformdataproviders).
+
 ### FormDataProviderData Hook
 
 The [`Action<FormName>FormDataProviderData` hook]({{<relref "/8/modules/concepts/hooks/list-of-hooks/action<FormName>FormDataProviderData">}}) allows your module to provide or modify the values sent to forms. 
@@ -220,10 +222,12 @@ public function install()
 
 public function hookActionProductFormDataProviderData(array $params): void
 {
-    // change value of a submited field, accessible in 
+    // change value of fields in $params["data"]
 }
 ```
 
+This hook has been implemented as an example in our [modules examples repository - demoformdataproviders](https://github.com/PrestaShop/example-modules/tree/master/demoformdataproviders).
+
 ### FormHandler hook
 
 The `FormHandler` hooks allows to receive the `Form` data, and make operations with this data to persist it.