[Chart] Add a small example how to set options

Author: Nyholm

src/Chartjs/Model/Chart.php

@@ -43,6 +43,21 @@ public function setData(array $data)
         $this->data = $data;
     }
 
+    /**
+     * Sets Chart.js options.
+     *
+     * @see https://www.chartjs.org/docs/latest/
+     *
+     * <code>
+     *    $chart->setOptions([
+     *        'scales' => [
+     *            'yAxes' => [
+     *                ['ticks' => ['min' => 0, 'max' => 100]],
+     *            ]
+     *        ]
+     *    ]);
+     * </code>
+     */
     public function setOptions(array $options)
     {
         $this->options = $options;

src/Chartjs/README.md

@@ -47,7 +47,13 @@ class HomeController extends AbstractController
             ],
         ]);
 
-        $chart->setOptions([/* ... */]);
+        $chart->setOptions([
+            'scales' => [
+                'yAxes' => [
+                    ['ticks' => ['min' => 0, 'max' => 100]],
+                ],
+            ],
+        ]);
 
         return $this->render('home/index.html.twig', [
             'chart' => $chart,