update readme / meta info [ci skip]

.meta.yml

@@ -1,4 +1,6 @@
 icon: "app/src/main/res/mipmap-xxxhdpi/ic_launcher.png"
+googleplay: "https://play.google.com/store/apps/details?id=james.metronome"
+package: "james.metronome"
 screenshots:
   - ".github/images/main.png"
   - ".github/images/about.png"

README.md

@@ -1,5 +1,27 @@
 Metronome is a lightweight, well designed metronome app for Android focused on offering a consistent and usable design without limiting functionality.
 
+[![Build Status](https://travis-ci.com/fennifith/Metronome-Android.svg?branch=master)](https://travis-ci.com/fennifith/Metronome-Android)
+[![Discord](https://img.shields.io/discord/514625116706177035.svg?logo=discord&colorB=7289da)](https://discord.gg/kgqJ5hM)
+[![Liberapay](https://img.shields.io/badge/liberapay-donate-yellow.svg?logo=liberapay)](https://liberapay.com/fennifith/donate)
+
+Special thanks to [Kevin Aguilar](https://twitter.com/kevttob) for designing [this app's beautiful icon](https://dribbble.com/shots/5643017-Metronome-Updated-Icon).
+
+## Screenshots
+
 | Home   | About  | Themes |
 |--------|--------|--------|
-|![img](./.github/images/main.png?raw=true)|![img](./.github/images/about.png?raw=true)|![img](./.github/images/theme.png?raw=true)|
+| ![home page](./.github/images/main.png?raw=true) | ![about screen](./.github/images/about.png?raw=true) | ![theming options](./.github/images/theme.png?raw=true) |
+
+## Installation
+
+The app is published on Google Play:
+
+[<img src="https://play.google.com/intl/en_us/badges/images/generic/en_badge_web_generic.png"
+    alt="Get it on Google Play"
+    height="80">](https://play.google.com/store/apps/details?id=james.metronome)
+
+Alternatively, you can download the latest APK from [the GitHub releases](../../releases/).
+
+## Contributing & Build Instructions
+
+Instructions for contributing to this project and building it locally can be found [here](./.github/CONTRIBUTING.md).