Fix path to image (#3443)

example-projects/file-explorer/README.md

@@ -2,7 +2,7 @@
 
 This example shows how a Dioxus App can directly leverage system calls and libraries to bridge native functionality with the WebView renderer.
 
-![example](./src/image.png)
+![example](./assets/image.png)
 
 
 ## To run this example: