Deploying the petstore app from a local clone of a public repo

[david-martin]

• Create an initial doc for the walkthrough
• Detail deploying the petstore app (public) via local clone of the now public repo
• PR into https://github.com/Kuadrant/multicluster-gateway-controller/blob/main/docs/how-to/api-walkthrough.md

[jasonmadigan]

Related: https://github.com/Kuadrant/multicluster-gateway-controller/pull/753

[david-martin]

Done in https://github.com/Kuadrant/api-quickstart/issues/4