fix typo + add badges in readme

README.md

@@ -1,4 +1,8 @@
-# breadcast-single-worker
+# broadcast-single-worker
+
+![test](https://github.com/Sysix/broadcast-single-worker/actions/workflows/test.yml/badge.svg)(https://github.com/Sysix/broadcast-single-worker/actions/workflows/test.yml)
+![NPM Version](https://img.shields.io/npm/v/%40sysix%2Fbroadcast-single-worker)
+![NPM License](https://img.shields.io/npm/l/!%5BNPM%20Version%5D(https%3A%2F%2Fimg.shields.io%2Fnpm%2Fv%2F%2540sysix%252Fbroadcast-single-worker))
 
 ## Setup
 
@@ -9,9 +13,9 @@ Install with npm:
 Use it in your code:
 
 ```typescript
-import BreadcastSingleWorker from '@sysix/broeadcast-single-worker';
+import BroadcastSingleWorker from '@sysix/broadcast-single-worker';
 
-const worker = new BreadcastSingleWorker('channel_name');
+const worker = new BroadcastSingleWorker('channel_name');
 
 worker.addListener('start-worker', () => {
     // this code will only be executed for a single tab

src/BroadcastSingleWorker.test.ts

@@ -17,7 +17,7 @@ Object.defineProperty(window, 'BroadcastChannel', {
     }
 })
 
-describe('breadocast single worker', () => {
+describe('broadocast single worker', () => {
     test('fire start-worker event when connecting', () => {
         const worker = new BroadcastSingleWorker('worker');
         const startCallback = jest.fn();