Fixed typos

src/Faker/Provider/Image.php

@@ -24,7 +24,7 @@ public static function imageUrl($width = 640, $height = 480, $category = null, $
         $url = "http://lorempixel.com/{$width}/{$height}/";
         if ($category) {
             if (!in_array($category, static::$categories)) {
-                throw new \InvalidArgumentException(sprintf('Unkown image category "%s"', $category));
+                throw new \InvalidArgumentException(sprintf('Unknown image category "%s"', $category));
             }
             $url .= "{$category}/";
             if ($word) {

test/Faker/Provider/BarcodeTest.php

@@ -21,18 +21,18 @@ public function testEan8()
     {
         $code = $this->faker->ean8();
         $this->assertRegExp('/^\d{8}$/i', $code);
-        $codeWitoutChecksum = substr($code, 0, -1);
+        $codeWithoutChecksum = substr($code, 0, -1);
         $checksum = substr($code, -1);
-        $this->assertEquals(TestableBarcode::eanChecksum($codeWitoutChecksum), $checksum);
+        $this->assertEquals(TestableBarcode::eanChecksum($codeWithoutChecksum), $checksum);
     }
 
     public function testEan13()
     {
         $code = $this->faker->ean13();
         $this->assertRegExp('/^\d{13}$/i', $code);
-        $codeWitoutChecksum = substr($code, 0, -1);
+        $codeWithoutChecksum = substr($code, 0, -1);
         $checksum = substr($code, -1);
-        $this->assertEquals(TestableBarcode::eanChecksum($codeWitoutChecksum), $checksum);
+        $this->assertEquals(TestableBarcode::eanChecksum($codeWithoutChecksum), $checksum);
     }
 }