Executable tutorial with links to Killercoda and Github (#2920)

* leo3-ferran demo proposal

* Feedback on Demo: Blue Green Deployment

* Revert "Merge branch 'KTH:2025' into 2025"

This reverts commit f14a3dd, reversing
changes made to c6e0794.

* delete Feedback document

* Reapply "Merge branch 'KTH:2025' into 2025"

This reverts commit 37c4e3c.

* OPA-focused demo proposal

* Add correct directory location for demo

* Delete Week 6 demo proposal

* Add Presentation Proposal

* Add Presentation Proposal

* Add executable tutorial proposal

* Added links to Killercoda and Github

Author: Ferran32

contributions/executable-tutorial/valganon-solanes/README.md

@@ -34,3 +34,5 @@ Steps of the tutorial:
 
 This tutorial is relevant to this course, since it is a crucial part of the DevOps lifecycle, and more specifically to the DevSecOps practices. It is a mix of the topics studied on Weeks 2, 3 and 6. By incorporating Chainguard into CI/CD workflows, teams ensure that only verified, vulnerability-free images reach deployment, reducing risk and improving reliablility.
 
+The link to the Killercoda tutorial is: https://killercoda.com/killercoda-testing/scenario/devops_tutorial
+The link to the Github repository is: https://github.com/mivalgan/killercoda-testing