✨ repo + labels + milestone config yaml (#55)

What we want is to make it a bit easier for the uninitiated to get their
bearings by:
1. Prefixing workflows for this repo with `_` to make the reusable ones
more obvious.
2. Merging the labels and milestone config files into one `config.yaml`.
This should make it a bit easier for us to see what the automation is
doing, allow us to grow this config later, and enable further automation
down the road.

There are minor changes somewhat hidden in here, like putting a due date
on `v0.4.0` milestone that I lazily decided to keep in this PR.

Signed-off-by: David Zager <dzager@redhat.com>

.github/workflows/README.md

@@ -0,0 +1,6 @@
+GitHub Workflows for Release Tools
+==================================
+
+Here you will find workflows for the administration of this repository,
+prefixed like `_main.yaml` as well as [reusable workflows](https://docs.github.com/en/actions/using-workflows/reusing-workflows)
+for use across Konveyor. 

README.md

@@ -1,11 +1,21 @@
 Release Tools
 =============
 
-This project contains tooling for creating and managing releases for the Konveyor organization.
+This project contains, or should contain, all of the configuration and
+automation to maintain, build, and release Konveyor.
 
-## Available Workflows
-[![FOSSA Status](https://app.fossa.com/api/projects/git%2Bgithub.com%2Fkonveyor%2Frelease-tools.svg?type=shield)](https://app.fossa.com/projects/git%2Bgithub.com%2Fkonveyor%2Frelease-tools?ref=badge_shield)
+Check out the [config.yaml](./pkg/config/config.yaml) to see:
+
+1. The repositories we are managing
+1. The Labels we are configuring in repositories
+1. The milestones we are configuring in repositories
+
+This allows us to have a single source of truth to make sure that, as we create
+enhancments, issues, and pull requests, they can be tracked properly.
 
+You can find our reusable GitHub Workflows in [./.github/workflows](./.github/workflows).
+
+## Available Workflows
 
 ### Prepare repository for release
 
@@ -39,6 +49,5 @@ for more information on how to get started.
 
 Refer to Konveyor's Code of Conduct [here](https://github.com/konveyor/community/blob/main/CODE_OF_CONDUCT.md).
 
-
 ## License
-[![FOSSA Status](https://app.fossa.com/api/projects/git%2Bgithub.com%2Fkonveyor%2Frelease-tools.svg?type=large)](https://app.fossa.com/projects/git%2Bgithub.com%2Fkonveyor%2Frelease-tools?ref=badge_large)
+[![FOSSA Status](https://app.fossa.com/api/projects/git%2Bgithub.com%2Fkonveyor%2Frelease-tools.svg?type=shield)](https://app.fossa.com/projects/git%2Bgithub.com%2Fkonveyor%2Frelease-tools?ref=badge_shield)