Fixed Pexels 403.

README.md

@@ -664,7 +664,7 @@ API | Description | Auth | HTTPS | CORS |
 | [Imgur](https://apidocs.imgur.com/) | Images | `OAuth` | Yes | Unknown |
 | [Lorem Picsum](https://picsum.photos/) | Images from Unsplash | No | Yes | Unknown |
 | [ObjectCut](https://objectcut.com/) | Image Background removal | `apiKey` | Yes | Yes |
-| [Pexels](https://pexels.com/api/documentation/) | Free Stock Photos and Videos | `apiKey` | Yes | Yes |
+| [Pexels](https://www.pexels.com/api/) | Free Stock Photos and Videos | `apiKey` | Yes | Yes |
 | [Pixabay](https://pixabay.com/sk/service/about/api/) | Photography | `apiKey` | Yes | Unknown |
 | [PlaceKitten](https://placekitten.com/) | Resizable kitten placeholder images | No | Yes | Unknown |
 | [ScreenShotLayer](https://screenshotlayer.com) | URL 2 Image | No | Yes | Unknown |