diff --git a/README.md b/README.md
index c87764f..4b537da 100644
--- a/README.md
+++ b/README.md
@@ -17,6 +17,11 @@
 > 1. 订阅
 
 ##Screenshot
+
+![](https://github.com/AndroidBase/AndroidDigest/blob/master/gancai.gif)
+
+----------
+
 ![app-0.2-screenshot](https://raw.githubusercontent.com/openproject/AndroidDigest/master/release/screenshot-0.2.png)
 
 ##Demo
diff --git a/app/build.gradle b/app/build.gradle
index 97605a0..4b72c59 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -2,7 +2,7 @@ apply plugin: 'com.android.application'
 
 android {
     compileSdkVersion 22
-    buildToolsVersion "22.0.1"
+    buildToolsVersion "22.0.0"
 
     defaultConfig {
         applicationId "com.jayfeng.androiddigest"
@@ -12,19 +12,19 @@ android {
         versionName "0.2"
     }
 
-    signingConfigs {
-        release {
-            storeFile file(RELEASE_STORE_FILE)
-            storePassword RELEASE_STORE_PASSWORD
-            keyAlias RELEASE_KEY_ALIAS
-            keyPassword RELEASE_KEY_PASSWORD
-        }
-    }
+  // signingConfigs {
+     //   release {
+        //  storeFile file(RELEASE_STORE_FILE)
+        //  storePassword RELEASE_STORE_PASSWORD
+          // keyAlias RELEASE_KEY_ALIAS
+          //  keyPassword RELEASE_KEY_PASSWORD
+      //}
+  // }
 
     buildTypes {
         release {
             minifyEnabled false
-            signingConfig signingConfigs.release
+          //  signingConfig signingConfigs.release
             proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
         }
     }
diff --git a/gancai.gif b/gancai.gif
new file mode 100644
index 0000000..e07f4a1
Binary files /dev/null and b/gancai.gif differ