fix big facade typo

src/Facades/JsonFeed.php

@@ -6,7 +6,7 @@
 
 class JsonFeed extends Facade
 {
-    protected function getFacadeAcessor()
+    protected static function getFacadeAccessor()
     {
         return 'jsonFeed';
     }

tests/Facades/JsonFeedTest.php

@@ -0,0 +1,17 @@
+<?php
+
+namespace Tests\Mateusjatenee\JsonFeed\Facades;
+
+use Mateusjatenee\JsonFeed\Facades\JsonFeed as JsonFeedFacade;
+use Mateusjatenee\JsonFeed\JsonFeed;
+use Mateusjatenee\JsonFeed\Tests\TestCase;
+
+class JsonFeedTest extends TestCase
+{
+
+    /** @test */
+    public function it_returns_an_instance_of_json_feed()
+    {
+        $this->assertInstanceOf(JsonFeed::class, JsonFeedFacade::start());
+    }
+}