fix intro

nwn-2-gui-scripting.md

@@ -13,14 +13,13 @@ tags:
 
 # Language
 
-The GUI are written in a non standard form of XML.
+The GUI are written in a superset of the standard XML.
 
 - The first line must be something like `<?xml version="1.0" encoding="utf-8"?>`
 - Attributes values can be delimited by `'`, `"` or if not delemited ends with a space
     + Example: this does not work: `OnLeftClick=UIObject_Misc_ExecuteServerScript("gui_myscript","Hello World")` because OnLeftClick value has no delimiter and will end after `Hello`
 - Auto-closing tags are accepted `<UIText />`
-- If you repeat an attribute twice inside the same XML tag, the GUI will not load
-- The `UIScene` tag must never be closed
+- The `UIScene` tag can be left unclosed
 
 
 # Rules