修复一个说明的问题。

skywalking-sdk-plugin/README.md

@@ -6,7 +6,7 @@
 |jdbc-plugin| 追踪通过JDBC规范访问数据库 | [查看](jdbc-plugin) |
 |mysql-plugin| 追踪通过mysql官方5.1驱动访问数据库 | [查看](mysql-plugin)|
 |httpClient-4.x-plugin| 追踪通过httpClient发起的http访问 | [查看](httpClient-4.x-plugin) |
-|httpClient-4.x-plugin-dubbox-rest-attachment| 追踪通过httpClient调用ubbox发布的rest服务 | [查看](httpClient-4.x-plugin-dubbox-rest-attachment) |
+|httpClient-4.x-plugin-dubbox-rest-attachment| 追踪通过httpClient调用dubbox发布的rest服务 | [查看](httpClient-4.x-plugin-dubbox-rest-attachment) |
 |jedis-2.x-plugin| 追踪jedis 2.8发起的redis访问 | [查看](jedis-2.x-plugin) |
 |~~httpclient-4.2.x-plugin~~| 追踪httpclient发起的访问 | [查看](httpclient-4.2.x-plugin) |
 |~~httpclient-4.3.x-plugin~~| 追踪httpclient发起的访问 | [查看](httpclient-4.3.x-plugin) |
\ No newline at end of file

skywalking-sdk-plugin/httpClient-4.x-plugin-dubbox-rest-attachment/README.md

-# 追踪通过httpClient调用ubbox发布的rest服务？
+# 追踪通过httpClient调用dubbox发布的rest服务？
 - 使用httpClient-4.x-plugin插件，[查看](../mysql-plugin)
 - 引入所需插件
 ```xml