docs: update airgap software delivery course name (#2172)

## Type of change

- [ ] Bug fix (non-breaking change which fixes an issue)
- [ ] New feature (non-breaking change which adds functionality)
- [X] Other (security config, docs update, etc)

docs/1-getting-started/0-understand-the-basics.md

@@ -16,7 +16,7 @@ Before you can effectively use Zarf, it is useful to have an understanding of th
 ### AirGap Basics
 
 - [What is AirGap](https://ibm.github.io/kubernetes-networking/vpc/airgap/)
-- [AirGap Kubernetes Course](https://training.linuxfoundation.org/training/modern-air-gap-software-delivery-lfs281/) - Created by Defense Unicorns
+- [AirGap Software Delivery Linux Foundation Course](https://training.linuxfoundation.org/training/modern-air-gap-software-delivery-lfs281/) - Created by Defense Unicorns
 
 ### GitOps Basics