Final Submission: Executable Tutorial (#1692)

* executable-tutorial: proposal GH Action optimization

* fix: formatting of README.md

* [ Final Submission ] executable tutorial

* fix: assignment and README seperation

* fix: added links

* fix: put links in proposal README

* fix: removed header to pass action

contributions/executable-tutorial/gotthard-faivre/README.md

@@ -18,3 +18,8 @@ Executable tutorial
 ## Description
 We intend to create a step-by-step tutorial on how you could potentially optimize a GitHub Actions pipeline in terms of execution time for a `node.js` application. The idea is to start with a *naive* and slow pipeline and iteratively apply optimizations to it and measure the improvement in execution time.
 
+**links to tutorial:**
+
+- [GitHub katacoda repo](https://github.com/BastienFaivre/katacoda-scenarios)
+- [GitHub sample project repo](https://github.com/BastienFaivre/katacoda-GH-actions)
+- [katacoda](https://www.katacoda.com/bastienfaivre/scenarios/github-actions-optimization)