【update】更新架构图 review zhouqiang

Author: songyumeng

.github/product_overview.png

@@ -8,7 +8,7 @@
 
 SuperMap iClient JavaScript 10i is a set of open source WebGIS client application development kit. It’s a new construction based on modern Web technology. It’s a common JavaScript client for SuperMap Cloud GIS and Online GIS platform’s series products. It integrates leading open source map libraries and visualization libraries, supports multi-source data services and map services, supports multiple terminals and crossing browser. It provides new functions such as large data visualization and real-time flow data visualization in GIS. Through this product, we can quickly present maps beautifully and smoothly on browsers.
 
-![Overview](https://github.com/SuperMap/iClient-JavaScript/blob/master/.github/product_overview.png)
+![Overview](https://github.com/SuperMap/iClient-JavaScript/blob/master/.github/product_overview_en.png)
 
 [中文官网](http://iclient.supermap.io) | [ENGLISH HOMEPAGE](http://iclient.supermap.io/en/web/index.html)