update: Pika link (#310)

Update Pika link

README.md

@@ -207,7 +207,7 @@
 | [Metropolitan Museum of Art](https://metmuseum.github.io/) | Met Museum of Art | No | Yes | No |
 | [Noun Project](http://api.thenounproject.com/index.html) | Icons | `OAuth`| No | Unknown |
 | [PHP-Noise](https://php-noise.com/) | Noise Background Image Generator | No | Yes | Yes |
-| [Pika](https://pika.style/image-generation-api/templates) | Image Generation API | `apiKey` | Yes | Yes |
+| [Pika](https://pika.style/image-generation-api) | Image Generation API | `apiKey` | Yes | Yes |
 | [Rijksmuseum](https://data.rijksmuseum.nl/object-metadata/api/) | RijksMuseum Data | `apiKey` | Yes | Unknown |
 | [The Color](https://www.thecolorapi.com/) | Swiss army knife for color | No | No | Unknown |
 | [Word Cloud](https://wordcloudapi.com/) | Easily create word clouds | `apiKey` | Yes | Unknown |