chore: add the testing and transaction posts to their respective sections (#155)

Author: lholmquist

docs/development/testing.md

@@ -156,3 +156,7 @@ For more on Code Coverage, see the [Code Coverage](./code-coverage) section
 [unexpected]: https://www.npmjs.com/package/unexpected
 [webdriverio]: https://www.npmjs.org/package/webdriverio
 [snapshots]: https://jestjs.io/docs/snapshot-testing
+
+## Further Reading
+
+* [Introduction to the Node.js reference architecture: Testing](https://developers.redhat.com/articles/2023/07/27/introduction-nodejs-reference-architecture-testing)

docs/functional-components/transaction-handling.md

@@ -63,3 +63,7 @@ covers them in more depth.
 Some databases offer support to help with implementing
 the 2 phase commit technique, so read through the documentation for the
 database you are using if you are planning to use that technique.
+
+## Further Reading
+
+* [Introduction to the Node.js reference architecture: Testing](https://developers.redhat.com/articles/2023/07/31/how-handle-transactions-nodejs-reference-architecture)