diff --git a/README.md b/README.md
index 47c93f6..fa726da 100644
--- a/README.md
+++ b/README.md
@@ -16,24 +16,18 @@ webmagic
 
 
 ## Install:
-
-Clone the repo and build:
-
-	git clone https://github.com/code4craft/webmagic.git
-	cd webmagic
-	mvn clean install	  
-
-Add dependencies to your project:
+  
+Add dependencies to your pom.xml:
 
 		<dependency>
             <groupId>us.codecraft</groupId>
             <artifactId>webmagic-core</artifactId>
-            <version>0.2.0</version>
+            <version>0.2.1</version>
         </dependency>
 		<dependency>
             <groupId>us.codecraft</groupId>
             <artifactId>webmagic-extension</artifactId>
-            <version>0.2.0</version>
+            <version>0.2.1</version>
         </dependency>
 
 ## Get Started:
diff --git a/release.properties b/release.properties
deleted file mode 100644
index 86e7224..0000000
--- a/release.properties
+++ /dev/null
@@ -1,11 +0,0 @@
-#release configuration
-#Tue Aug 20 23:36:56 CST 2013
-scm.tagNameFormat=@{project.artifactId}-@{project.version}
-pushChanges=true
-scm.url=scm\:git\:git@github.com\:code4craft/webmagic.git
-preparationGoals=clean verify
-remoteTagging=true
-scm.commentPrefix=[maven-release-plugin] 
-exec.additionalArguments=-Psonatype-oss-release -P development
-exec.snapshotReleasePluginAllowed=false
-completedPhase=check-poms
diff --git a/webmagic manual.md b/webmagic manual.md
index 0f4d4e4..b9d7541 100644
--- a/webmagic manual.md	
+++ b/webmagic manual.md	
@@ -21,22 +21,17 @@ webmagic使用手册
 
 ### 使用maven
 
-webmagic使用maven管理依赖，你可以直接下载webmagic源码进行编译：
-
-	git clone https://github.com/code4craft/webmagic.git
-	mvn clean install
-
-安装后，在项目中添加对应的依赖即可使用webmagic：
+webmagic使用maven管理依赖，在项目中添加对应的依赖即可使用webmagic：
 
 		<dependency>
             <groupId>us.codecraft</groupId>
             <artifactId>webmagic-core</artifactId>
-            <version>0.2.0</version>
+            <version>0.2.1</version>
         </dependency>
 		<dependency>
             <groupId>us.codecraft</groupId>
             <artifactId>webmagic-extension</artifactId>
-            <version>0.2.0</version>
+            <version>0.2.1</version>
         </dependency>
 
 #### 项目结构
diff --git a/zh_docs/README.md b/zh_docs/README.md
index 31eb2ba..a990244 100644
--- a/zh_docs/README.md
+++ b/zh_docs/README.md
@@ -29,23 +29,17 @@ Java爬虫 **Spiderman** [https://gitcafe.com/laiweiwei/Spiderman](https://gitca
 
 ### 使用maven
 
-webmagic使用maven管理依赖，你可以直接下载webmagic源码进行编译：
-
-	git clone https://github.com/code4craft/webmagic.git
-	cd webmagic
-	mvn clean install
-
-安装后，在项目中添加对应的依赖即可使用webmagic：
+webmagic使用maven管理依赖，在项目中添加对应的依赖即可使用webmagic：
 
 		<dependency>
             <groupId>us.codecraft</groupId>
             <artifactId>webmagic-core</artifactId>
-            <version>0.2.0</version>
+            <version>0.2.1</version>
         </dependency>
 		<dependency>
             <groupId>us.codecraft</groupId>
             <artifactId>webmagic-extension</artifactId>
-            <version>0.2.0</version>
+            <version>0.2.1</version>
         </dependency>
 
 #### 项目结构