Fix: Fix symbolic link for README.md

[ByteOtter]

What this PR does / why we need it:

Fixes the current problem with the README.md symlink pointing to a doc removed in #21.

Which issue(s) this PR fixes:
Fixes: n/A

Definition of Done:

• [x ] The code is sufficiently documented
• Shared the changes with the Team so everyone is aware
• The code is appropriately tested
• Checked if the code needs to be backportet to release branches of maintained versions (perform the actual backport after the merge to main)

Special notes for your reviewer:

Release note:

[netlify]

✅ Deploy Preview for gardenlinux-docs ready!

Name	Link
🔨 Latest commit	438c146
🔍 Latest deploy log	https://app.netlify.com/projects/gardenlinux-docs/deploys/69de37881ed9110009ef151d
😎 Deploy Preview	https://deploy-preview-40--gardenlinux-docs.netlify.app
📱 Preview on mobile	Toggle QR Code... Use your smartphone camera to open QR code link.

---

To edit notification comments on pull requests, go to your Netlify project configuration.