Update README.md

Guy Baron · web-flow · commit f82337747e8b · 2019-05-07T12:55:44.000+03:00
diff --git a/README.md b/README.md
@@ -109,7 +109,7 @@ gb.HandleEvent("name of exchange", "name of topic", SomeEvent{}, eventHandler)
 Start the bus
 ```Go
 gb.Start()
-defer gb.Shutsown()
+defer gb.Shutdown()
 ```
 
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