Currently the https://gateway-api-inference-extension.sigs.k8s.io/contributing/devguide/ is blank.

It will be helpful to have a workable developer-guide.

Likely it can include the info

• How to set up the env needed to develop code in the OSS repo

• How to iterate, for example when you change type definition

• How to run the tests
  Can refer to other k8s OSS repos to have a rough idea

• https://github.com/kubernetes/community/tree/master/contributors/devel#

• https://gateway-api.sigs.k8s.io/contributing/devguide/

• https://github.com/knative/eventing/blob/main/DEVELOPMENT.md

Also open to other devs to see what kind of things are needed in the developer-guide