Apply suggestions from code review

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

Author: xmcgcg

source/containers.tex

@@ -10083,7 +10083,7 @@
 and
 \tcode{last})
 and no reallocations if
-\tcode{InputIterator} meets the requirements of \oldconcept{ForwardIterator}.
+\tcode{InputIterator} meets the \oldconcept{ForwardIterator} requirements.
 It makes order
 $N$
 calls to the copy constructor of
@@ -10386,7 +10386,7 @@
 \end{itemize}
 For the declarations taking a pair of \tcode{InputIterator},
 performs at most one reallocation if
-\tcode{InputItera\-tor} meets the requirements of \oldconcept{ForwardIterator}.
+\tcode{InputItera\-tor} meets the \oldconcept{ForwardIterator} requirements.
 \end{itemdescr}
 
 \indexlibrarymember{erase}{vector}%