I removed our old broken link and replaced it with a new beautiful one that works (#537)

praise the lord

Author: dino475

api-playground/openapi/writing-openapi.mdx

@@ -8,7 +8,7 @@ description: "Use OpenAPI features to enhance your documentation"
 There are many great tools online for learning about and constructing OpenAPI documents. Here are our favorites:
 - [Swagger's OpenAPI Guide](https://swagger.io/docs/specification/about/) for familiarizing yourself with the OpenAPI syntax
 - [OpenAPI v3.1.0 Specification](https://github.com/OAI/OpenAPI-Specification/blob/main/versions/3.1.0.md) for all the details about the newest OpenAPI specification
-- [Swagger & OpenAPI Validator](https://apitools.dev/swagger-parser/online/) for debugging your OpenAPI document
+- [Swagger & OpenAPI Validator](https://editor.swagger.io/) for debugging your OpenAPI document
 - [Swagger's Editor](https://editor.swagger.io/) for seeing examples in action
 
 <Note>