Add milestones and changelog links to ROADMAP / update (#487)

Updates the roadmap to outline all the past tasks as well as the future
tasks (within milestones).

ROADMAP.md

@@ -2,18 +2,10 @@
 
 The goal of Kedge is to have the __best__ possible experience when deploying Kubernetes artifacts. 
 
-Here we outline our goals for future releases:
+## Past
 
-## Kedge 0.1.0
+Past tasks are automatically generated and outlined within our [CHANGELOG.md](https://github.com/kedgeproject/kedge/blob/master/CHANGELOG.md).
 
-* [ ] Parameterize the ingress host value or endpoint value
-* [ ] Rename persistentVolumes to something better like volumeClaims
-* [ ] Add support for Jobs, CronJobs, HorizontalPodAutoScaler, etc.
-* [ ] Comprehensive documentation of each and every feature
-* [ ] The way secrets and configmaps are referred in containers.env it is too much indirection, making it easier.
-* [ ] configData are confusing terms rename them.
-* [ ] Add convenient shortcuts to the make configMapKeyRef and secretKeyRef usage becomes easier.
-* [ ] Add such shortcuts to other part of the spec, but user can choose to use shortcuts or define everything without having to use shortcuts.
-* [ ] Create intelligent defaults to the tool, to reduce what a user will write.
-* [ ] Generate OpenShift artifacts? All things related to OpenShift like builds, routes, etc.
-* [ ] Fields could be renamed to have easier or better name.
+## Upcoming
+
+Future tasks are outlined within [milestones](https://github.com/kedgeproject/kedge/milestones).