[charconv.syn] Clarify types matching integer-type (#6847)

Author: eisenwave

source/utilities.tex

@@ -15317,7 +15317,7 @@
 When a function is specified
 with a type placeholder of \tcode{\placeholder{integer-type}},
 the implementation provides overloads
-for all cv-unqualified signed and unsigned integer types and \tcode{char}
+for \tcode{char} and all cv-unqualified signed and unsigned integer types
 in lieu of \tcode{\placeholder{integer-type}}.
 When a function is specified
 with a type placeholder of \tcode{\placeholder{floating-point-type}},