Add README and screenshots.

Change-Id: I5a6161d729f7020d9973c514239fffa730c2449b

Author: nickbutcher

README

@@ -0,0 +1,49 @@
+# Owl
+
+<img src="screenshots/collage_header.png" alt="Owl collage"/>
+
+## Introduction
+Owl is an educational app that uses Material Design components and [Material Theming](https://material.io/design/material-theming) to create an energetic, motivational brand experience.
+This project is the Android implementation of [Owl](https://material.io/design/material-studies/owl.html), a Material study meant to showcase componentry and Theming using the [Material Components for Android library](https://github.com/material-components/material-components-android).
+
+## Screenshots
+<img src="screenshots/owl_demo.gif" alt="Owl sample demo"/>
+
+## Material Theming
+Owl employs material theming to reflect the energy and excitement of learning a new skill, using a bold aesthetic and unfilled shapes that invite the user to populate them with new content and courses. The app customizes color, shape and typography to achieve this.
+
+### Color
+<img src="screenshots/color_header.png" alt="Owl color theming"/>
+
+Owl has three primary colors. Each color is used to create a distinct visual theme for each section. See [colors.xml](https://github.com/material-components/material-components-android-examples/blob/develop/owl/app/src/main/res/values/color.xml) and how they are used in [light](https://github.com/material-components/material-components-android-examples/blob/develop/owl/app/src/main/res/values/themes.xml#L58-L86) and [dark](https://github.com/material-components/material-components-android-examples/blob/develop/owl/app/src/main/res/values-night/themes.xml) themes.
+
+### Shape
+<img src="screenshots/shape_header.png" alt="Owl shape theming"/>
+
+Owl defines small, medium and large shape categories for different sized components. See [shape.xml](https://github.com/material-components/material-components-android-examples/blob/develop/owl/app/src/main/res/values/shape.xml) which defines the `ShapeAppearance`s, which are then [set in the theme](https://github.com/material-components/material-components-android-examples/blob/develop/owl/app/src/main/res/values/themes.xml#L20-L23) and picked up by all components or refferred to directly.
+
+### Typography
+<img src="screenshots/type_header.png" alt="Owl typography theming"/>
+
+Owl’s type scale provides the typographic variety necessary for the app content. All items in the type scale use [Rubik](https://fonts.google.com/specimen/Rubik) as the typeface, and make use of the variety of weights available by using Rubik Regular, Medium, and Bold. See [type.xml](https://github.com/material-components/material-components-android-examples/blob/develop/owl/app/src/main/res/values/type.xml) which defines `TextAppearance`s which are then [set in the theme](https://github.com/material-components/material-components-android-examples/blob/develop/owl/app/src/main/res/values/themes.xml#L25-L38) and referred to using `?attr/TextAppearance.Owl.*` throughout.
+
+## 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.
+```