diff --git a/README.md b/README.md
index 50d9796..7217da3 100644
--- a/README.md
+++ b/README.md
@@ -14,82 +14,82 @@
 
 由于现在条目过多，在同一页显示全部内容已不再合适，所以按分类写到了不同文件里。仍然想以全部内容方式查看的可以点击[all.md](category/all.md)浏览。
 
-##索引
+##索引  
 [.NET](category/NET.md)  
-[ANDROID](category/ANDROID.md)  
-[ANGULAR](category/ANGULAR.md)  
-[ATOM](category/ATOM.md)  
-[BOOTSTRAP](category/BOOTSTRAP.md)  
+[Android](category/ANDROID.md)  
+[Angular](category/ANGULAR.md)  
+[Atom](category/ATOM.md)  
+[Bootstrap](category/BOOTSTRAP.md)  
 [C#](category/C#.md)  
 [C/C++](category/C_C++.md)  
-[CASSANDRA](category/CASSANDRA.md)  
-[CEPH](category/CEPH.md)  
-[CHROME](category/CHROME.md)  
-[CLOJURE](category/CLOJURE.md)  
-[COCOS2D](category/COCOS2D.md)  
-[COUCHDB](category/COUCHDB.md)  
+[Cassandra](category/CASSANDRA.md)  
+[Ceph](category/CEPH.md)  
+[Chrome](category/CHROME.md)  
+[Clojure](category/CLOJURE.md)  
+[Cocos2d](category/COCOS2D.md)  
+[CouchDB](category/COUCHDB.md)  
 [CSS](category/CSS.md)  
 [D](category/D.md)  
-[DAPPER](category/DAPPER.md)  
-[DEVOPS](category/DEVOPS.md)  
-[DIRECTX](category/DIRECTX.md)  
-[DOCKER](category/DOCKER.md)  
-[ELASTICSEARCH](category/ELASTICSEARCH.md)  
-[ELECTRON](category/ELECTRON.md)  
-[EMACS](category/EMACS.md)  
-[ERLANG](category/ERLANG.md)  
-[FIREFOX](category/FIREFOX.md)  
-[GIT](category/GIT.md)  
-[GO](category/GO.md)  
-[HADOOP](category/HADOOP.md)  
-[HASKELL](category/HASKELL.md)  
-[HBASE](category/HBASE.md)  
+[Dapper](category/DAPPER.md)  
+[DevOps](category/DEVOPS.md)  
+[DirectX](category/DIRECTX.md)  
+[Docker](category/DOCKER.md)  
+[Elasticsearch](category/ELASTICSEARCH.md)  
+[Electron](category/ELECTRON.md)  
+[Emacs](category/EMACS.md)  
+[Erlang](category/ERLANG.md)  
+[Firefox](category/FIREFOX.md)  
+[Git](category/GIT.md)  
+[Go](category/GO.md)  
+[Hadoop](category/HADOOP.md)  
+[Haskell](category/HASKELL.md)  
+[HBase](category/HBASE.md)  
 [HTML5](category/HTML5.md)  
-[IOS](category/IOS.md)  
-[JAVA](category/JAVA.md)  
-[JAVASCRIPT](category/JAVASCRIPT.md)  
-[KAFKA](category/KAFKA.md)  
-[LINUX](category/LINUX.md)  
-[LISP](category/LISP.md)  
-[LUA](category/LUA.md)  
-[MAC](category/MAC.md)  
-[MARKDOWN](category/MARKDOWN.md)  
-[MATH](category/MATH.md)  
-[MEMCACHED](category/MEMCACHED.md)  
-[MONGODB](category/MONGODB.md)  
-[MYSQL](category/MYSQL.md)  
-[NGINX](category/NGINX.md)  
-[NODE.JS](category/NODEJS.md)  
-[OPENGL](category/OPENGL.md)  
-[OPENSTACK](category/OPENSTACK.md)  
-[PERL](category/PERL.md)  
+[iOS](category/IOS.md)  
+[Java](category/JAVA.md)  
+[JavaScript](category/JAVASCRIPT.md)  
+[Kafka](category/KAFKA.md)  
+[Linux](category/LINUX.md)  
+[Lisp](category/LISP.md)  
+[Lua](category/LUA.md)  
+[Mac](category/MAC.md)  
+[Markdown](category/MARKDOWN.md)  
+[Math](category/MATH.md)  
+[Memcached](category/MEMCACHED.md)  
+[MongoDB](category/MONGODB.md)  
+[MySQL](category/MYSQL.md)  
+[Nginx](category/NGINX.md)  
+[Node.js](category/NODEJS.md)  
+[OpenGL](category/OPENGL.md)  
+[OpenStack](category/OPENSTACK.md)  
+[Perl](category/PERL.md)  
 [PHP](category/PHP.md)  
-[POSTGRESQL](category/POSTGRESQL.md)  
-[PUPPET](category/PUPPET.md)  
-[PYTHON](category/PYTHON.md)  
+[PostgreSQL](category/POSTGRESQL.md)  
+[Puppet](category/PUPPET.md)  
+[Python](category/PYTHON.md)  
 [R](category/R.md)  
-[RASPBERRY PI](category/RASPBERRY_PI.md)  
-[REACT](category/REACT.md)  
-[REACT NATIVE](category/REACT_NATIVE.md)  
-[REDIS](category/REDIS.md)  
-[REGEX](category/REGEX.md)  
-[RUBY](category/RUBY.md)  
-[RUST](category/RUST.md)  
-[SCALA](category/SCALA.md)  
-[SHELL](category/SHELL.md)  
-[SPARK](category/SPARK.md)  
-[SQLITE](category/SQLITE.md)  
-[STORM](category/STORM.md)  
-[SWIFT](category/SWIFT.md)  
-[THRIFT](category/THRIFT.md)  
-[UNITY3D](category/UNITY3D.md)  
-[VARNISH](category/VARNISH.md)  
-[VIM](category/VIM.md)  
+[Raspberry Pi](category/RASPBERRY_PI.md)  
+[React](category/REACT.md)  
+[React Native](category/REACT_NATIVE.md)  
+[Redis](category/REDIS.md)  
+[Regex](category/REGEX.md)  
+[Ruby](category/RUBY.md)  
+[Rust](category/RUST.md)  
+[Scala](category/SCALA.md)  
+[Shell](category/SHELL.md)  
+[Spark](category/SPARK.md)  
+[SQLite](category/SQLITE.md)  
+[Storm](category/STORM.md)  
+[Swift](category/SWIFT.md)  
+[Thrift](category/THRIFT.md)  
+[Unity3D](category/UNITY3D.md)  
+[Varnish](category/VARNISH.md)  
+[Vim](category/VIM.md)  
 [VR](category/VR.md)  
-[VUE](category/VUE.md)  
+[Vue](category/VUE.md)  
 [WEB前端](category/WEB前端.md)  
 [WEB安全](category/WEB安全.md)  
-[WOLFRAM](category/WOLFRAM.md)  
+[Wolfram](category/WOLFRAM.md)  
 [分布式相关](category/分布式相关.md)  
 [开源系统](category/开源系统.md)  
 [微信小程序](category/微信小程序.md)