[vector.cons] Add \libconcept for approximately_sized_range

Author: hewillk

source/containers.tex

@@ -10113,7 +10113,7 @@
 \tcode{ranges::distance(rg) <= ranges::re\-serve_hint(rg)} is \tcode{true}, or
 \item
 \tcode{R} models \tcode{ranges::\libconcept{forward_range}} and
-\tcode{R} does not model \tcode{ranges::approximately_sized_range}.
+\tcode{R} does not model \tcode{ranges::\libconcept{approximately_sized_range}}.
 \end{itemize}
 Otherwise, performs order $\log N$ reallocations and
 order $N$ calls to the copy or move constructor of \tcode{T}.