Add documentation for multiple file uploads in Dropzone

Author: Carlos Hernández

src/Dropzone/CHANGELOG.md

@@ -1,8 +1,8 @@
 # CHANGELOG
 
-## 2.31
+## 2.32
 
--  Support for multiple files drag and drop and peviews
+-  Add support for multiple files upload
 
 ## 2.30
 

src/Dropzone/doc/index.rst

@@ -55,6 +55,18 @@ replacement of the native FileType class::
         // ...
     }
 
+To enable multiple uploads, you can configure it in buildForm method adding "multiple" boolean option::
+
+    // ...
+        ->add(
+            'photo',
+            DropzoneType::class,
+            [
+                'multiple' => true, // Allow multiple file uploads
+            ]
+        )
+    // ...
+
 Customizing the design
 ~~~~~~~~~~~~~~~~~~~~~~