Link broken on tektoncd/operator/blob/main/DEVELOPMENT.md

[T3-git]

Expected Behavior

On https://github.com/tektoncd/operator/blob/main/DEVELOPMENT.md when clicking the link in

To setup a cluster with GKE:

Install required tools and setup GCP project (You may find it useful to save the ID of the project in an environment variable (e.g. PROJECT_ID).

you will be lead to a file not found page.

Actual Behavior

This link should link to a markdown document describing Knative-with-GKE.md or if this document no longer exists, a replacement solution should be provided.

Steps to Reproduce the Problem

1. Open DEVELOPMENT.md
2. Click the link under to setup a cluster with GKE