Update project README

This reflects changes in the project status. Added Contributing guide and
rewrite new issue template.

Signed-off-by: Yahor Berdnikau <egorr.berd@gmail.com>

CONTRIBUTING.md

@@ -0,0 +1,24 @@
+# Contributing
+
+Ultrasonic development is a community project, and contributions are welcomed.
+
+First, see if your issue haven’t been yet reported [here](https://github.com/ultrasonic/ultrasonic/issues),
+then, please, first discuss the change you wish to make via [a new issue](https://github.com/ultrasonic/ultrasonic/issues/new).
+
+### Here are a few guidelines you should follow before submitting:
+1. **License Acceptance:** All contributions must be licensed as [GNU GPLv3](LICENSE) to be accepted. 
+Use `git commit --signoff` to acknowledge this.
+2. **App is migrating to [Kotlin](https://kotlinlang.org/) programming language:** new Pull Requests
+should be written in this programming language.
+3. **No Breakage:** New features or changes to existing ones must not degrade the user experience. 
+4. **Coding standards** best-practices should be followed, comment generously, and avoid "clever" algorithms. 
+Refactoring existing messes is great, but watch out for breakage.
+5. **No large PR:*** Try to limit the scope of PR only to the related issue, so it will be easier to review
+and test.
+
+## Pull Request Process
+
+1. Ensure all commits are signed-off.
+2. Check tests for the new code are added.
+3. Check code style is passing.
+4. Check code static analysis is passing.

ISSUE_TEMPLATE.md

@@ -1 +1,20 @@
-Please, take note that this project is STALLED. See README.md for more info.
+## Problem description
+
+Describe your problem here. Describe what you want to happen, and what happens
+if you try to do it. If you have a stack trace or any logs, please format them using
+github triple backquote notation
+
+### Steps to reproduce
+
+Describe how somebody else could observe the same behavior you do. Don't share here any logins and 
+passwords!
+
+## System information
+
+ * **Ultrasonic version**: *version of the app*
+ * **Android version**: *Version of Android OS on the device*
+ * **Device info**: *Device manufacturer, model*
+
+## Additional notes
+
+Include any extra notes here. Otherwise you may remove this section.

README.md

@@ -3,14 +3,25 @@
 [![Codecov branch](https://img.shields.io/codecov/c/github/ultrasonic/ultrasonic/develop.svg)]()
 [![ktlint](https://img.shields.io/badge/code%20style-%E2%9D%A4-FF4081.svg)](https://ktlint.github.io/)
 
-Subsonic Music Streamer Android client
+Ultrasonic is free, open-source [Subsonic](http://www.subsonic.org/) [API](http://www.subsonic.org/pages/api.jsp) compatible music streaming Android client.
 
-## About project status
+## Download
 
-WARNING: This project is **STALLED**
+App is available to download at following stores: 
+ - [Google play store](https://play.google.com/store/apps/details?id=org.moire.ultrasonic)
+ - [F-Droid](https://f-droid.org) - coming soon...
+ 
+## Bugs and issue
 
-This means that I don't have time to fix bugs or add new features, but you can send me **Pull Requests** and I **promise** that I shall merge and upload to Play Store.
+First, see if your issue haven’t been yet reported [here](https://github.com/ultrasonic/ultrasonic/issues),
+otherwise open [a new issue](https://github.com/ultrasonic/ultrasonic/issues/new).
 
-If you want contribute at project you can see the [issues](https://github.com/ogarcia/ultrasonic/issues) page and try to fix the discovered bugs or implement the enhancements that users report there.
+## Contributing
 
-If you want give more active development, please contact with me cause I can give you access to repository to do work faster.
+See [CONTRIBUTING](CONTRIBUTING.md).
+
+## License
+
+This software is licensed under the terms of the GNU General Public License version 3 (GPLv3). 
+
+Full text of the license is available in the [LICENSE](LICENSE) file and [online](https://opensource.org/licenses/gpl-3.0.html).