Add CHANGELOG

Signed-off-by: CrazyMax <crazy-max@users.noreply.github.com>

CHANGELOG.md

@@ -0,0 +1,51 @@
+# Changelog
+
+## 2.0.0 (2020/08/??)
+
+v2 of Build Push action uses Docker [Buildx](https://github.com/docker/buildx). It's also rewritten as
+a [typescript-action](https://github.com/actions/typescript-action/) to be as closed as possible of
+the [GitHub Runner](https://github.com/actions/virtual-environments) during its execution (#71 #92).
+
+* Rename `path` input to `context`
+* Rename `dockerfile` input to `file`
+* Rename `always_pull` input to `pull`
+* Add `builder` input to be able to choose a builder instance through our [setup-buildx action](https://github.com/docker/setup-buildx-action)
+* Add [`platforms`](https://github.com/docker/buildx#---platformvaluevalue) input
+* Add [`allow`](https://github.com/docker/buildx#--allowentitlement) input
+* Add [`load`](https://github.com/docker/buildx#--load) input
+* Add [`outputs`](https://github.com/docker/buildx#-o---outputpath-typetypekeyvalue) input
+* Add [`cache-from`](https://github.com/docker/buildx#--cache-fromnametypetypekeyvalue) input
+* Add [`cache-to`](https://github.com/docker/buildx#--cache-tonametypetypekeyvalue) input
+* Review `tags` input
+* Remove `repository`, `username`, `password`, `registry`, `cache_froms` inputs
+* Remove `tag_with_sha`, `tag_with_ref`, `add_git_labels` inputs
+* Handle Git context
+* Add `digest` output
+* Login support moved to [ghaction-docker-login](https://github.com/crazy-max/ghaction-docker-login) action
+* Enhanced examples in README
+* Tests and/or CI workflows
+
+## 1.1.0 (2020/04/23)
+
+* Add cache-from support fixing #7
+* Add GCR example
+
+## 1.0.1 (2020/03/23)
+
+* Clarify dockerfile and path inputs
+* Rename LICENCE to LICENSE
+* Use v1 of docker/gihub-actions image
+* Logs in before building image
+
+## 1.0.0 (2020/03/18)
+
+* Build and push Docker images to Docker Hub or your own private registry.
+* Log in to Hub or private registry.
+* Static tags and labels.
+* Auto tagging by git ref.
+* Auto tagging by git SHA.
+* Auto labelling with opencontainers standards.
+* Build arguments.
+* Multi-stage build targets.
+
+Backed by Docker image [docker/github-action:v1.0](https://hub.docker.com/repository/docker/docker/github-actions/)