Add docs for sending parameters from controller to dataTable class.

Author: yajra

buttons-with.md

@@ -0,0 +1,26 @@
+# Sending parameter to DataTable class
+You can send a parameter from controller to dataTable class using `with` api.
+
+
+## Example:
+
+```php
+Route::get('datatable/{id}', function(UsersDataTable $dataTable, $id){
+   return $dataTable->with('id', $id)
+           ->with([
+                'key2' => 'value2',
+                'key3' => 'value3',
+           ])
+           ->render('path.to.view');
+});
+```
+
+You can then get the variable as a local property of the class.
+
+```php
+class UsersDataTable {
+    public function query() {
+        return User::where('id', $this->id);
+    }
+}
+```

documentation.md

@@ -80,6 +80,7 @@
 	- [Quick Starter](/docs/{{package}}/{{version}}/buttons-starter)
 	- [DataTable Buttons](/docs/{{package}}/{{version}}/buttons-export)
 	- [Custom Actions](/docs/{{package}}/{{version}}/buttons-custom)
+	- [Sending Parameters](/docs/{{package}}/{{version}}/buttons-with)
 	- [Extended DataTable](/docs/{{package}}/{{version}}/buttons-extended)
 	- [Artisan Console](/docs/{{package}}/{{version}}/buttons-console)
 	- [Github](https://github.com/yajra/laravel-datatables-buttons)