Update README

README.md

@@ -14,6 +14,7 @@ npm install --save toggle-fullscreen
 
 ## Usage
 ```js
+const toggleFullscreen = require('toggle-fullscreen');
 onChangeFullScreen = function() {
  const element = document.getElementById('something');
  toggleFullscreen(element).then(function(isFullScreen) {
@@ -30,6 +31,7 @@ onChangeFullScreen = function() {
 
 For async/await:
 ```js
+const toggleFullscreen = require('toggle-fullscreen');
 onChangeFullScreen = async () => {
  const element = document.getElementById('something');
  const isFullScreen = await toggleFullscreen(element);
@@ -45,18 +47,19 @@ onChangeFullScreen = async () => {
 
 For callback (use if something is wrong with Promise) :
 ```js
- onChangeFullScreen = function() {
- const element = document.getElementById('something');
- toggleFullscreen(element, function(isFullScreen) {
- if (isFullScreen) {
- // any process in fullscreen mode
- // e.g.document.addEventListener('keydown', this.keydownEvent);
- } else {
- // any process in non-fullscreen mode
- // e.g.document.removeEventListener('keydown', this.keydownEvent);
- }
- });
- };
+const toggleFullscreen = require('toggle-fullscreen');
+onChangeFullScreen = function() {
+ const element = document.getElementById('something');
+ toggleFullscreen(element, function(isFullScreen) {
+ if (isFullScreen) {
+ // any process in fullscreen mode
+ // e.g.document.addEventListener('keydown', this.keydownEvent);
+ } else {
+ // any process in non-fullscreen mode
+ // e.g.document.removeEventListener('keydown', this.keydownEvent);
+ }
+ });
+};
 ```
 ## Support
 - Chrome@latest

package.json

@@ -1,6 +1,6 @@
 {
  "name": "toggle-fullscreen",
- "version": "0.2.0",
+ "version": "0.2.1",
  "description": "Simple to use Fullscreen API with Promise for cross-browser.",
  "main": "index.js",
  "scripts": {