docs(swarm): add a basic README.md

Author: mboersma

swarm/README.md

@@ -0,0 +1,23 @@
+# Deis Swarm Scheduler
+
+[Docker swarm](https://github.com/docker/swarm/) components for use as
+an optional scheduler in Deis, the open source PaaS.
+
+## Usage
+
+Please consult the [swarm scheduler documentation](http://docs.deis.io/en/latest/customizing_deis/choosing-a-scheduler/#swarm-scheduler)
+for instructions on installing and activating swarm in Deis.
+
+## License
+
+© 2015 Engine Yard, Inc.
+
+Licensed under the Apache License, Version 2.0 (the "License"); you may
+not use this file except in compliance with the License. You may obtain
+a copy of the License at <http://www.apache.org/licenses/LICENSE-2.0>
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.