Use Case Guide: Direct traffic to multiple applications using different paths and hostnames

[mpstefan]

As a potential user of NKG
I want a guide to help me understand how I can direct traffic to my set of applications, utilizing different paths, http verbs, and hostnames, headers, and query parameters.
So that I can easily understand how to immediately start using NKG in my environment.

Acceptance

• A guide is created that explains how a user may set up traffic forwarding via NKG for a set of applications.
• A link is present for any relevant Kubernetes Gateway API guide.
• Guide goes over how to route traffic based on paths, different http verbs, hostnames, headers, and query parameters.