Update README.md

Author: Alexander

README.md

@@ -7,16 +7,32 @@ Android Billing v4+ implementation for non consumable products. Written in **Kot
 *My implemenation is much easy to use, you can adapt it also for subscriptions and for consumable products.*
 *PurchaseManager.kt is well documented.*
 
+[![](https://jitpack.io/v/Almaren/Android_Billing_v4up_PurchaseManager.svg)](https://jitpack.io/#Almaren/Android_Billing_v4up_PurchaseManager)
+
 ## Preparing:
 * **First put your developer Base64-encoded RSA public key (from Google Play Console: your app -> monetization setup) in: /local.properties/base64EncodedPublicKey=YOUR_KEY**
 * **In order to test billing - Release your application with an integrated billing library but not yet implemented to any testing track (internal testing is better). Just adding 'com.android.billingclient:billing:4+' is enough at this stage.**
 * **For debugging testing: in Google Developers Console (Not Play Console) add your debug key SHA1.**
 * **In Google Play Console create a testers group.**
+* Add to your project build.gradle:
+  ```
+  allprojects {
+    repositories {
+      ...
+      maven { url 'https://jitpack.io' }
+    }
+  }
+  ```
+  to the app build.gradle:
+  ```
+  dependencies {
+        implementation 'com.github.Almaren:Android_Billing_v4up_PurchaseManager:1.0.0'
+  }
+  ```
 
 ## How to use:
 **All methods of PurchaseManager must be called from the main ui thread.**
 1. Call init(activity: Activity, listener: PurchaseListener) from Activity.onCreate(..). Via PurchaseListener you will receive available products to purchase, a purchased items, a result from the recent purchase.
 2. Call onResume() from Activity.onResume()
 3. Call dispose() from Activity.onDestroy()
 4. IAP methods: getItemPrices() and purchaseItem(itemType: PurchaseType)
-