Update 3 1 ui components

3-1-ui-components.md

@@ -4,7 +4,7 @@
 
 > To Chang:
 >
-> How about naming the UI components as, "menu bar", "variables pane", "area pane", "view pane", "layers pane", "actions pane"?. Let me know if you have more suitable names.
+> How about naming the UI components as, "menu bar", "variables pane", "area pane", "viewer pane", "layers pane", "actions pane"?. Let me know if you have more suitable names.
 
 
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