Add link to anyOf documentation

Author: jpkleemans

README.md

@@ -126,6 +126,8 @@ const contact = anyOf([
 ])
 ```
 
+> Read more about `anyOf` in the [JSON Schema Documentation](https://json-schema.org/understanding-json-schema/reference/combining#anyOf)
+
 ## 🤔 "But what about Zod?"
 
 Great question! Zod is a versatile and comprehensive library, spanning thousands of lines of code. However, it's not specifically built for generating JSON Schemas, which can lead to unexpected results during conversion. In contrast, JSON Schema Kit provides full control — all in under 100 lines of code.