Improve Tornjak Quickstart with Enhanced Minikube Instructions and Troubleshooting

[jimlo7760]

This PR enhances the Tornjak Deployment Guide by improving Minikube setup instructions and expanding the troubleshooting section to help users navigate potential issues.

Key Updates:

1. Added explicit command to start Minikube using Docker (minikube start --driver=docker).
2. Clarified the expected output of kubectl get daemonset --namespace spire and suggested retrying if values appear as 0/1.
3. Expanded troubleshooting with solutions for Minikube failing to start due to missing DHCP lease on Parallels VM.
4. Included step-by-step guide for renewing DHCP lease on macOS to resolve connectivity issues.
5. Add a browser recommendation description for better API response rendering

These improvements aim to enhance clarity and reduce friction for users deploying Tornjak with SPIRE in Kubernetes.

Checklist:

• Verified changes against the existing documentation structure.
• Tested Minikube setup with the updated steps.
• Ensured troubleshooting steps are accurate and reproducible.

Would appreciate a review and feedback!

Signed-off-by: Jim Lu [email protected]
From RCOS at RPI