Update xml/issue4390.xml

Co-authored-by: Jonathan Wakely <[email protected]>

Author: tomaszkam

xml/issue4390.xml

@@ -25,7 +25,7 @@ This narrows design space wrt using braces for initialization
 of <tt>basic_vec</tt>, especially if we allow user-defined types.
 </p>
 <p>
-<iref ref="4230"/> address thsi by allowing
+LWG <iref ref="4230"/> would address this by allowing
 <tt>vec&lt;complex&lt;double&gt;&gt;(1., 1.);</tt>
 </p>
 </discussion>