update

README.md

@@ -85,7 +85,7 @@
 系统公告管理
 ![](https://code.educoder.net/pcjs8mx7g/warehouse/tree/master/src%2Fmain%2Fresources%2Fstatic%2Fimages/notice.PNG)
 缓存管理
-![](https://code.educoder.net/pcjs8mx7g/warehouse/tree/master/src%2Fmain%2Fresources%2Fstatic%2Fimages/cache.PNG)
+![](https://code.educoder.net/api/pcjs8mx7g/warehouse/raw/src%2Fmain%2Fresources%2Fstatic%2Fimages%2Fcache.PNG?ref=master)
 客户管理
 ![](https://code.educoder.net/pcjs8mx7g/warehouse/tree/master/src%2Fmain%2Fresources%2Fstatic%2Fimages/customer.PNG)
 供应商管理