diff --git a/LICENSE b/LICENSE
index 8dada3e..e1ecc40 100644
--- a/LICENSE
+++ b/LICENSE
@@ -186,7 +186,7 @@
       same "printed page" as the copyright notice for easier
       identification within third-party archives.
 
-   Copyright {yyyy} {name of copyright owner}
+   Copyright {2017} {Jieyi Wu}
 
    Licensed under the Apache License, Version 2.0 (the "License");
    you may not use this file except in compliance with the License.
diff --git a/README.md b/README.md
index 4c972b3..76ff938 100644
--- a/README.md
+++ b/README.md
@@ -64,6 +64,7 @@ ideas or problems. Please let me know, thank you!
 
 # License
 
+```
 Copyright (C) 2017 Jieyi Wu
 
 Licensed under the Apache License, Version 2.0 (the "License");
@@ -77,3 +78,4 @@ distributed under the License is distributed on an "AS IS" BASIS,
 WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 See the License for the specific language governing permissions and
 limitations under the License.
+```
\ No newline at end of file
diff --git a/app/src/androidTest/java/com/devrapid/utils/ExampleInstrumentedTest.java b/app/src/androidTest/java/com/devrapid/utils/ExampleInstrumentedTest.java
deleted file mode 100644
index 3d9519f..0000000
--- a/app/src/androidTest/java/com/devrapid/utils/ExampleInstrumentedTest.java
+++ /dev/null
@@ -1,26 +0,0 @@
-package com.devrapid.utils;
-
-import android.content.Context;
-import android.support.test.InstrumentationRegistry;
-import android.support.test.runner.AndroidJUnit4;
-
-import org.junit.Test;
-import org.junit.runner.RunWith;
-
-import static org.junit.Assert.assertEquals;
-
-/**
- * Instrumentation test, which will execute on an Android device.
- *
- * @see <a href="http://d.android.com/tools/testing">Testing documentation</a>
- */
-@RunWith(AndroidJUnit4.class)
-public class ExampleInstrumentedTest {
-    @Test
-    public void useAppContext() throws Exception {
-        // Context of the app under test.
-        Context appContext = InstrumentationRegistry.getTargetContext();
-
-        assertEquals("com.devrapid.utils", appContext.getPackageName());
-    }
-}
diff --git a/app/src/test/java/com/devrapid/utils/ExampleUnitTest.java b/app/src/test/java/com/devrapid/utils/ExampleUnitTest.java
deleted file mode 100644
index 91482e2..0000000
--- a/app/src/test/java/com/devrapid/utils/ExampleUnitTest.java
+++ /dev/null
@@ -1,17 +0,0 @@
-package com.devrapid.utils;
-
-import org.junit.Test;
-
-import static org.junit.Assert.assertEquals;
-
-/**
- * Example local unit test, which will execute on the development machine (host).
- *
- * @see <a href="http://d.android.com/tools/testing">Testing documentation</a>
- */
-public class ExampleUnitTest {
-    @Test
-    public void addition_isCorrect() throws Exception {
-        assertEquals(4, 2 + 2);
-    }
-}
\ No newline at end of file
diff --git a/kotlinknifer/build.gradle b/kotlinknifer/build.gradle
index 4384e19..5196ed3 100644
--- a/kotlinknifer/build.gradle
+++ b/kotlinknifer/build.gradle
@@ -23,12 +23,11 @@ android {
 }
 
 dependencies {
-    compile fileTree(dir: 'libs', include: ['*.jar'])
+    compile "org.jetbrains.kotlin:kotlin-stdlib:$kotlin_version"
     compile group: 'com.google.code.gson', name: 'gson', version: '2.8.1'
     compile "io.reactivex.rxjava2:rxkotlin:2.1.0"
     compile "io.reactivex.rxjava2:rxjava:2.1.3"
     compile "com.android.support:appcompat-v7:25.3.1"
-    compile "org.jetbrains.kotlin:kotlin-stdlib:$kotlin_version"
 }
 
 apply from: 'https://raw.githubusercontent.com/pokk/JCenterUploader/master/Uploader.gradle'
diff --git a/app/.gitignore b/sample/.gitignore
similarity index 100%
rename from app/.gitignore
rename to sample/.gitignore
diff --git a/app/build.gradle b/sample/build.gradle
similarity index 100%
rename from app/build.gradle
rename to sample/build.gradle
diff --git a/app/proguard-rules.pro b/sample/proguard-rules.pro
similarity index 100%
rename from app/proguard-rules.pro
rename to sample/proguard-rules.pro
diff --git a/app/src/main/AndroidManifest.xml b/sample/src/main/AndroidManifest.xml
similarity index 100%
rename from app/src/main/AndroidManifest.xml
rename to sample/src/main/AndroidManifest.xml
diff --git a/app/src/main/java/com/devrapid/utils/MainActivity.kt b/sample/src/main/java/com/devrapid/utils/MainActivity.kt
similarity index 100%
rename from app/src/main/java/com/devrapid/utils/MainActivity.kt
rename to sample/src/main/java/com/devrapid/utils/MainActivity.kt
diff --git a/app/src/main/res/layout/activity_main.xml b/sample/src/main/res/layout/activity_main.xml
similarity index 100%
rename from app/src/main/res/layout/activity_main.xml
rename to sample/src/main/res/layout/activity_main.xml
diff --git a/app/src/main/res/mipmap-hdpi/ic_launcher.png b/sample/src/main/res/mipmap-hdpi/ic_launcher.png
similarity index 100%
rename from app/src/main/res/mipmap-hdpi/ic_launcher.png
rename to sample/src/main/res/mipmap-hdpi/ic_launcher.png
diff --git a/app/src/main/res/mipmap-hdpi/ic_launcher_round.png b/sample/src/main/res/mipmap-hdpi/ic_launcher_round.png
similarity index 100%
rename from app/src/main/res/mipmap-hdpi/ic_launcher_round.png
rename to sample/src/main/res/mipmap-hdpi/ic_launcher_round.png
diff --git a/app/src/main/res/mipmap-mdpi/ic_launcher.png b/sample/src/main/res/mipmap-mdpi/ic_launcher.png
similarity index 100%
rename from app/src/main/res/mipmap-mdpi/ic_launcher.png
rename to sample/src/main/res/mipmap-mdpi/ic_launcher.png
diff --git a/app/src/main/res/mipmap-mdpi/ic_launcher_round.png b/sample/src/main/res/mipmap-mdpi/ic_launcher_round.png
similarity index 100%
rename from app/src/main/res/mipmap-mdpi/ic_launcher_round.png
rename to sample/src/main/res/mipmap-mdpi/ic_launcher_round.png
diff --git a/app/src/main/res/mipmap-xhdpi/ic_launcher.png b/sample/src/main/res/mipmap-xhdpi/ic_launcher.png
similarity index 100%
rename from app/src/main/res/mipmap-xhdpi/ic_launcher.png
rename to sample/src/main/res/mipmap-xhdpi/ic_launcher.png
diff --git a/app/src/main/res/mipmap-xhdpi/ic_launcher_round.png b/sample/src/main/res/mipmap-xhdpi/ic_launcher_round.png
similarity index 100%
rename from app/src/main/res/mipmap-xhdpi/ic_launcher_round.png
rename to sample/src/main/res/mipmap-xhdpi/ic_launcher_round.png
diff --git a/app/src/main/res/mipmap-xxhdpi/ic_launcher.png b/sample/src/main/res/mipmap-xxhdpi/ic_launcher.png
similarity index 100%
rename from app/src/main/res/mipmap-xxhdpi/ic_launcher.png
rename to sample/src/main/res/mipmap-xxhdpi/ic_launcher.png
diff --git a/app/src/main/res/mipmap-xxhdpi/ic_launcher_round.png b/sample/src/main/res/mipmap-xxhdpi/ic_launcher_round.png
similarity index 100%
rename from app/src/main/res/mipmap-xxhdpi/ic_launcher_round.png
rename to sample/src/main/res/mipmap-xxhdpi/ic_launcher_round.png
diff --git a/app/src/main/res/mipmap-xxxhdpi/ic_launcher.png b/sample/src/main/res/mipmap-xxxhdpi/ic_launcher.png
similarity index 100%
rename from app/src/main/res/mipmap-xxxhdpi/ic_launcher.png
rename to sample/src/main/res/mipmap-xxxhdpi/ic_launcher.png
diff --git a/app/src/main/res/mipmap-xxxhdpi/ic_launcher_round.png b/sample/src/main/res/mipmap-xxxhdpi/ic_launcher_round.png
similarity index 100%
rename from app/src/main/res/mipmap-xxxhdpi/ic_launcher_round.png
rename to sample/src/main/res/mipmap-xxxhdpi/ic_launcher_round.png
diff --git a/app/src/main/res/values/colors.xml b/sample/src/main/res/values/colors.xml
similarity index 100%
rename from app/src/main/res/values/colors.xml
rename to sample/src/main/res/values/colors.xml
diff --git a/app/src/main/res/values/strings.xml b/sample/src/main/res/values/strings.xml
similarity index 100%
rename from app/src/main/res/values/strings.xml
rename to sample/src/main/res/values/strings.xml
diff --git a/app/src/main/res/values/styles.xml b/sample/src/main/res/values/styles.xml
similarity index 100%
rename from app/src/main/res/values/styles.xml
rename to sample/src/main/res/values/styles.xml
diff --git a/settings.gradle b/settings.gradle
index faacd78..9d18ee6 100644
--- a/settings.gradle
+++ b/settings.gradle
@@ -1 +1 @@
-include ':app', ':kotlinknifer'
+include ':sample', ':kotlinknifer'