Updated README to point to jcenter()

Author: mannodermaus

README.md

@@ -6,10 +6,8 @@ A Gradle plugin that allows for the execution of [JUnit 5][junit5gh] unit tests
 ```groovy
 buildscript {
     repositories {
-        // 1. Add the repository (JCenter coming soon...)
-        maven {
-            url "http://dl.bintray.com/aurae/maven"
-        }
+        // 1. Make sure to include jcenter in your repositories
+        jcenter()
     }
     dependencies {
         // 2. Add the plugin as a classpath dependency

android-junit5/build.gradle

@@ -53,3 +53,17 @@ task copyPom(type: Copy) {
 
 publish.dependsOn copyPom
 
+task sourcesJar(type: Jar, dependsOn: classes) {
+    classifier = 'sources'
+    from sourceSets.main.allSource
+}
+
+task javadocJar(type: Jar, dependsOn: javadoc) {
+    classifier = 'javadoc'
+    from javadoc.destinationDir
+}
+
+artifacts {
+    archives sourcesJar
+    archives javadocJar
+}