Fix typo

Author: ellenspertus

src/docs/configuration.md

@@ -4,7 +4,7 @@ Gitpod dev environments are started with a single click. In order to make sure t
 
 ## Setup Assistant
 
-The setup assistant can help you getting started with this. Once you open a project without a `.gitpod.yml` you should see a notification in the bottom right that let's you start the assistant. 
+The setup assistant can help you getting started with this. Once you open a project without a `.gitpod.yml` you should see a notification in the bottom right that lets you start the assistant. 
 
 > If you don't see the notification or you have already dismissed it, you can open the wizard by pressing `F1` and searching for `Toggle Project Setup View`.