[temp.mem] Change "virtual" to "declared virtual"

Author: sdkrystian

source/templates.tex

@@ -2594,7 +2594,7 @@
 \end{example}
 
 \pnum
-A member function template shall not be virtual.
+A member function template shall not be declared \keyword{virtual}.
 \begin{example}
 \begin{codeblock}
 template <class T> struct AA {