Updated Readme, added Gradle dependency definition

Raised version to 1.2.4, releasing to Maven Central repository

Author: smarek

README.md

@@ -19,11 +19,24 @@ The sample application (the source is in the repository) has been published onto
 
 [![Get it on Google Play](http://www.android.com/images/brand/get_it_on_play_logo_small.png)](http://play.google.com/store/apps/details?id=uk.co.senab.photoview.sample)
 
+## Gradle integration
+
+Minimum code for Gradle integration, place code in your `build.gradle`
+
+```gradle
+repositories {
+  mavenCentral()
+}
+
+dependencies {
+  compile 'com.github.chrisbanes.photoview:library:1.2.4'
+}
+```
 
 ## Sample Usage
 There is a [sample](https://github.com/chrisbanes/PhotoView/tree/master/sample) provided which shows how to use the library in a more advanced way, but for completeness here is all that is required to get PhotoView working:
 
-``` java
+```java
 ImageView mImageView;
 PhotoViewAttacher mAttacher;
 

gradle.properties

@@ -1,4 +1,4 @@
-VERSION_NAME=1.2.4-SNAPSHOT
+VERSION_NAME=1.2.4
 VERSION_CODE=124
 GROUP=com.github.chrisbanes.photoview
 

sample/src/main/AndroidManifest.xml

@@ -1,7 +1,7 @@
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
           package="uk.co.senab.photoview.sample"
-          android:versionCode="122"
-          android:versionName="1.2.2-SNAPSHOT">
+          android:versionCode="124"
+          android:versionName="1.2.4">
 
     <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
     <uses-permission android:name="android.permission.INTERNET"/>