update files

AUTHORS.md

@@ -1,4 +0,0 @@
-# Authors
-
-* Bernhard Posselt: <dev@bernhard-posselt.com>
-

CHANGELOG.md

@@ -1,2 +1,12 @@
-owncloud-notestutorial (0.0.2)
-* First release
+# Changelog
+All notable changes to this project will be documented in this file.
+
+The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/)
+and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.html).
+
+
+## [0.0.2] - 2017-07-31
+
+### Added
+
+- First release

README.md

@@ -1,16 +1,24 @@
 # Tutorial
 
-[![Build Status](https://travis-ci.org/owncloud/news.svg?branch=master)](https://travis-ci.org/owncloud/app-tutorial)
+[![Build Status](https://travis-ci.org/nextcloud/news.svg?branch=master)](https://travis-ci.org/nextcloud/app-tutorial)
 
 This is the tutorial app. To install it change into your ownCloud's apps directory:
 
-    cd owncloud/apps
+    cd nextcloud/apps
 
 Then run:
 
-    git clone https://github.com/owncloud/app-tutorial.git notestutorial
+    git clone https://github.com/nextcloud/app-tutorial.git notestutorial
 
 where the branch parameter is the ownCloud version that you are targeting:
 
-* ownCloud 8: stable8
-* ownCloud master: master
+* Nextcloud 12: stable12
+* Nextcloud master: master
+
+## Using the Makefile
+
+The following make targets are available:
+
+* **test**: runs all tests
+* **appstore**: builds the package that can be uploaded to the app store
+* **source**: builds the source package