Updated README.md.

README.md

@@ -1 +1,28 @@
+# libpgs-js
+
 This library renders the graphical subtitles format PGS _(.sub / .sup)_ in the browser.
+
+## Usage
+
+Install the package via npm:
+```
+npm i --save libpgs
+```
+
+```html
+<div style="position: relative">
+    <video id="video-element" src="./video.mp4"></video>
+</div>
+```
+
+```javascript
+const videoElement = document.getElementById('video-element');
+const pgsRenderer = new libpgs.PgsRenderer({
+    video: videoElement,
+    subUrl: './subtitle.sup'
+});
+```
+
+## Licence
+
+[MIT License](LICENSE)