added simple readme

Author: Severi Haverila

README.md

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+# Prerequisites
+## General
+
+Appium
+
+## Android
+Android SDK
+
+### Notes
+
+```
+export PATH=$PATH:$ANDROID_HOME/platform-tools/
+export PATH=${PATH}:$ANDROID_HOME/tools/
+```
+
+## iOS
+
+libimobiledevice
+
+### Notes
+
+```
+brew uninstall libimobiledevice
+brew install --HEAD libimobiledevice
+```
+
+# Getting started
+Run Appium:
+
+` appium` or `appium -U <udid>`
+
+
+```
+cd library
+mvn package
+cp target/image-recognition-library-2.0-SNAPSHOT.jar ../example/lib/image_recognition_library_test.jar
+cd ../example
+	
+# Download the example Android application
+wget https://github.com/bitbar/testdroid-samples/blob/master/apps/builds/BitbarSampleApp.apk -O application.apk
+mvn -Dtest=AndroidSample clean test
+	
+# Download the example iOS application
+wget https://github.com/bitbar/testdroid-samples/blob/master/apps/builds/BitbarIOSSample.ipa -O application.ipa
+export UDID=<iPhone udid>
+mvn -Dtest=iOSSample clean test
+```
+