Update readme

README.md

@@ -1,2 +1,55 @@
 # Fastify SSE Plugin
-Fastify plugin for sending [Server-sent events](https://en.wikipedia.org/wiki/Server-sent_events).
+![CI check](https://github.com/NodeFactoryIo/fastify-sse-v2/workflows/CI%20check/badge.svg?branch=master)
+
+Fastify plugin for sending [Server-sent events](https://en.wikipedia.org/wiki/Server-sent_events).
+
+### How to use?
+
+```terminal
+yarn add fastify-sse-v2
+```
+Register fastify-sse-v2 plugin into your fastify instance:
+```javascript
+import {FastifySSEPlugin} from "fastify-sse-v2";
+
+const server = fastify();
+server.register(FastifySSEPlugin);
+```
+
+#### Sending events from AsyncIterable source
+
+```javascript
+import {FastifySSEPlugin} from "fastify-sse-v2";
+
+const server = fastify();
+server.register(FastifySSEPlugin);
+
+server.get("/", function (req, res) {
+    res.sse(async function * source () {
+          for (let i = 0; i < 10; i++) {
+            sleep(2000);
+            yield {id: String(i), data: "Some message"};
+          }
+    });
+});
+```
+
+##### Sending events from EventEmmiters
+
+```javascript
+import {FastifySSEPlugin} from "fastify-sse-v2";
+import EventIterator from "event-iterator";
+
+const server = fastify();
+server.register(FastifySSEPlugin);
+
+server.get("/", function (req, res) {
+    res.sse(new EventIterator(
+                ({ push }) => {
+                  this.addEventListener("some_event", push)
+                  return () => this.removeEventListener("some_event", push)
+                }
+        )
+    );
+});
+```