Update prow_setup with updated prow config template
1. Add the org (and/or repo) to the [plugins.yaml](./prow/plugins.yaml) file, at
least to the `approve` and `plugins` sections. Create a PR with the changes
- and once it's merged ask one of the owners of knative/test-infra to deploy
+ and once it's merged ask one of the owners of _knative/test-infra_ to deploy
the new config.
## Setting up Prow for a new repo (reviewers assignment and auto merge)
1. Make sure that _Knative Robots_ is an Admin of the repo.
1. Add the repo to the
- [tide section](https://github.com/knative/test-infra/blob/2f046b32301e50242b2723c13f6f37588993e89e/ci/prow/templates/prow_config_header.yaml#L56)
- in the Prow config file generator and run `make config`. Create a PR with the
- changes to the generator and to the [config.yaml](./prow/config.yaml) file.
- Once the PR is merged, ask one of the owners of knative/test-infra to deploy
+ [tide section](https://github.com/knative/test-infra/blob/b2cd02e6836ea2744ad838522b9eaf46385990f7/ci/prow/templates/prow_config_header.yaml#L72)
+ in the [Prow config template](./prow/templates/prow_config_header.yaml) and run `make config`. Create a PR with the
+ changes to the template and generated [config.yaml](./prow/config.yaml) file.
+ Once the PR is merged, ask one of the owners of _knative/test-infra_ to deploy
the new config.
1. Wait a few minutes, check that Prow is working by entering `/woof` as a
