Minor changes

Author: dacer

README.md

@@ -21,7 +21,7 @@ repositories {
 ```
 
 ```groovy
-compile 'com.hackplan:AndroidArcMenu:1.0.0'
+compile 'com.hackplan.androidarcmenu:library:1.0.0'
 ```
 
 # Usage

library/build.gradle

@@ -4,9 +4,9 @@ ext {
     bintrayRepo = 'maven'
     bintrayName = 'AndroidArcMenu'
 
-    publishedGroupId = 'com.hackplan'
+    publishedGroupId = 'com.hackplan.androidarcmenu'
     libraryName = 'AndroidArcMenu'
-    artifact = 'AndroidArcMenu'
+    artifact = 'library'
 
     libraryDescription = 'An easy-to-use arc Menu library for Android.'