feat(readme): update appactive_landscape pic url

README.md

@@ -25,7 +25,7 @@ commercial services, and has the characteristics of high reliability and scalabi
 
 ## Architecture
 
-![appactive_landscape](https://appactive.oss-cn-beijing.aliyuncs.com/images/appa_landscape.jpg?x-oss-process=style/h600)
+![appactive_landscape](https://appactive.oss-cn-beijing.aliyuncs.com/images/aactive_landscape.jpg?x-oss-process=style/h600)
 
 The overall structure of AppActive covers the data plane and the control plane。It manages application traffic and data
 in the whole process. As shown in the figure above, the details can be found in the following links:

docs/cn/README_CN.md

@@ -15,7 +15,7 @@ AppActive，是一个面向业务应用构建云原生高可用多活容灾架
 AppActive 建立在 阿里巴巴 使用 AHAS-MSHA 系统大规模运行生产应用系统的8年经验之上，且结合了来自阿里云商业化服务的外部多家客户和社区的最佳实践，具备高可靠、可拓展等特性。
 
 ## 概念&设计
-![appactive_landscape](https://appactive.oss-cn-beijing.aliyuncs.com/images/appa_landscape.jpg?x-oss-process=style/h600)
+![appactive_landscape](https://appactive.oss-cn-beijing.aliyuncs.com/images/aactive_landscape.jpg?x-oss-process=style/h600)
 
 AppActive 整体架构覆盖数据面和管控面，全流程管理应用流量和数据，如上图，详细内容可见下述的链接：