updating JitPack details

Author: menny

README.md

@@ -1,5 +1,21 @@
 # AnySoftKeyboard-API
 API library for AnySoftKeyboard.
 
+You need this api library, if you are going to implement a keyboard layout, theme, addon, etc.
 
-You need this api library, if you are going to implement a layout.
+### Dependency ###
+I'm using [![JitPack](https://img.shields.io/github/release/AnySoftKeyboard/AnySoftKeyboard-API.svg?label=JitPack)](https://jitpack.io/#AnySoftKeyboard/AnySoftKeyboard-API) to publish this library.
+
+Add it in your build.gradle at the end of repositories:
+```
+repositories {
+    //...
+    maven { url "https://jitpack.io" }
+}
+```
+Step 2. Add the dependency in the form
+```
+dependencies {
+    compile 'com.github.AnySoftKeyboard:AnySoftKeyboard-API:1.2.4'
+}
+```