[defns.argument.templ] Strike "instantiation"; refer to template-argument

Author: lprv

source/intro.tex

@@ -122,12 +122,10 @@
 \defncontext{throw expression} operand of \keyword{throw}
 
 \indexdefn{argument}%
-\indexdefn{argument!template instantiation}%
+\indexdefn{argument!template}%
 \definition{argument}{defns.argument.templ}
-\defncontext{template instantiation}
-\grammarterm{constant-expression},
-\grammarterm{type-id}, or
-\grammarterm{id-expression} in the comma-separated
+\defncontext{template}
+\grammarterm{template-argument} in the comma-separated
 list bounded by the angle brackets
 
 \indexdefn{block (execution)}%