Update README.md

README.md

@@ -50,7 +50,7 @@ Through the Unity inspector of the World Storage Server, the user can click on t
 
 <img src="Images/UnityEditor.png"  width=80% height=80%>
 
-The main window (left picture in the figure) manage the server's data and list of World Elements. From this window, the user can access to specific windows to edit the parameters of lements (right picture, e.g. parameters of a trackable).
+The main window (left picture in the figure) manage the server's data and list of World Elements. From this window, the user can access to specific windows to edit the parameters of elements (right picture, e.g. parameters of a trackable).
 
 ## World Graph Window
 <img src="Images/GraphEditor.png"  width=60% height=60%>