Update top level README with demos.

Author: nickbutcher

README.md

@@ -1,3 +1,30 @@
 # material-components-android-examples
 
-These example apps are Android implementations of hypothetical [Material Studies](https://material.io/design/material-studies/). Each one is built using the [MDC-Android library](http://github.com/material-components/material-components-android/) and features special customizations of color, typography, and shape made with [Material Theming](https://material.io/design/material-theming/).
+<img src="screenshots/mdc_samples.gif" alt="Reply, Owl, Basil sample demos"/>
+
+The apps in this repository are Android implementations of fictional [Material Studies](https://material.io/design/material-studies/). Each one is built using the [MDC-Android library](http://github.com/material-components/material-components-android/) and showcases customizations of color, typography, and shape made with [Material Theming](https://material.io/design/material-theming/).
+
+* [Reply](https://github.com/material-components/material-components-android-examples/tree/develop/Reply)
+* [Owl](https://github.com/material-components/material-components-android-examples/tree/develop/Owl)
+* [Coming Soon] Basil
+
+## License
+
+```
+Copyright 2019 Google, Inc.
+
+Licensed to the Apache Software Foundation (ASF) under one or more contributor
+license agreements. See the NOTICE file distributed with this work for
+additional information regarding copyright ownership. The ASF licenses this
+file to you 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.
+```