Adding api design roadmap resources (#7373)

* feat: add a resource link to api designs basics of dns topic

* feat: add a resource link to api designs restful apis topic

* Update src/data/roadmaps/api-design/content/basics-of-dns@v4nJYD9yiIEUviLPhVTCD.md

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Co-authored-by: dsh <daniel.s.holdsworth@gmail.com>

src/data/roadmaps/api-design/content/basics-of-dns@v4nJYD9yiIEUviLPhVTCD.md

@@ -6,4 +6,5 @@ Learn more from the following resources:
 
 - [@article@What is DNS?](https://www.cloudflare.com/en-gb/learning/dns/what-is-dns/)
 - [@article@Introduction to DNS](https://aws.amazon.com/route53/what-is-dns/)
-- [@video@DNS explained in 100 seconds](https://www.youtube.com/watch?v=UVR9lhUGAyU)
+- [@video@DNS explained in 100 seconds](https://www.youtube.com/watch?v=UVR9lhUGAyU)
+- [@article@DNS Record Crash Course for Web Developers](https://dev.to/chrisachard/dns-record-crash-course-for-web-developers-35hn)

src/data/roadmaps/api-design/content/restful-apis@BvwdASMvuNQ9DNgzdSZ4o.md

@@ -5,4 +5,5 @@ RESTful APIs, or Representational State Transfer APIs, are a set of conventions
 Learn more from the following resources:
 
 - [@article@What is REST?](https://restfulapi.net/)
-- [@article@What is a RESTul API?](https://aws.amazon.com/what-is/restful-api/)
+- [@article@What is a RESTul API?](https://aws.amazon.com/what-is/restful-api/)
+- [@video@Understanding RESTful APIs](https://www.youtube.com/watch?v=lsMQRaeKNDk)