move example-projects into examples

examples/file-explorer/README.md

@@ -0,0 +1,13 @@
+# File-explorer with Rust and Dioxus
+
+This example shows how a Dioxus App can directly leverage system calls and libraries to bridge native functionality with the WebView renderer.
+
+![example](./assets/image.png)
+
+
+## To run this example:
+
+```
+dx serve
+```
+