Merge pull request #99 from Citizen4our/move_zero2prod_articles

Move articles from backend_book.md to 5_zero2prod/README.md.

5_zero2prod/README.md

@@ -3,12 +3,17 @@ Chapter 5: Zero To Production
 
 __Estimated time__: 21 days
 
-These tasks contain exercises for the [Zero To Production](https://www.zero2prod.com/index.html) Book. Folders are named after the chapters in the book. Files in these folders are named like that: *chapter*_*subchapter*. The files contain exercises which you should do **after** reading the corresponding subchapter.
+These tasks contain exercises for the [Zero To Production](https://www.zero2prod.com/index.html) Book or you can read 
+[articles](../backend_book.md) 
+by the author on which the book is based.
+
+Folders are named after the chapters in the book. Files in these folders are named like that: *chapter*_*subchapter*. The files contain exercises which you should do **after** reading the corresponding subchapter.
 
 ### How to make pull requests
 
 Make pull requests with solutions like you'd make for your project. Don't copy-paste everything into a new pr. Reuse old files.
 
+#### In addition, some useful articles:
 - [Tests organization](https://doc.rust-lang.org/book/ch11-03-test-organization.html)
 - [More Testable Code with Hexagonal Architecture](https://m.youtube.com/watch?v=ujb_O6myknY)
 - [Ready for changes with Hexagonal Architecture](https://netflixtechblog.com/ready-for-changes-with-hexagonal-architecture-b315ec967749)