Merge pull request #251 from asyncapi/feature/fix-file-structure-link

Fix JSON Schema link in File structure section

Author: fmvilas

versions/next/asyncapi.md

@@ -123,7 +123,7 @@ In order to preserve the ability to round-trip between YAML and JSON formats, YA
 
 The A2S representation of the API is made of a single file.
 However, parts of the definitions can be split into separate files, at the discretion of the user.
-This is applicable for `$ref` fields in the specification as follows from the [JSON Schema](http://json-schema.org) definitions.
+This is applicable for `$ref` fields in the specification as follows from the [JSON Schema](https://json-schema.org/understanding-json-schema/structuring.html) definitions.
 
 By convention, the AsyncAPI Specification (A2S) file is named `asyncapi.json` or `asyncapi.yaml`.