Update README.md

README.md

@@ -213,6 +213,57 @@ import birds  from './birds';
 app.use('/birds', birds);
 ```
 
+## Plugins
+
+### Extend frontexpress via plugins:
+
+- [frontexpress-path-to-regexp](https://github.com/camelaissani/frontexpress-path-to-regexp): Add the ability to support Express-style path string such as /user/:name, /user*...
+
+Others are coming
+
+### Write your own plugin
+
+It consists to simply create an object with two properties:
+- **name**: the name of your plugin
+- **plugin**: the function containing the implementation
+
+Let's assume that we have implemented this plugin in the `frontexpress-my-plugin.js` file as below:
+
+```js
+export default {
+  name: 'My plugin',
+  plugin(app) {
+    // the plugin implementation goes here
+    
+    // Same ideas
+    // you can get settings
+    // const transformer = app.get('http GET transformer');
+    //
+    // you can set settings
+    // app.set('http requester', {
+    //   fetch() {
+    //     ...
+    //   }});
+    //
+    // you can complete routes
+    // app.get(...)
+  }
+};
+```
+
+To use it:
+
+```js
+import frontexpress from 'frontexpress';
+import myPlugin from 'frontexpress-my-plugin';
+
+// Front-end application
+const app = frontexpress();
+
+// tell to frontexpress to use your plugin
+app.use(myPlugin);
+```
+
 ## More
 
 [API](https://github.com/camelaissani/frontexpress/blob/master/docs/api.md)