Fixup: [ptr.align] Add a reference to [basic.align].

Author: Dawn Perchik

source/utilities.tex

@@ -7127,7 +7127,7 @@
 \effects
 \tcode{ptr} points to an object \tcode{X} of
 a type similar\iref{conv.qual} to \tcode{T},
-where \tcode{X} has alignment \tcode{N}.
+where \tcode{X} has alignment \tcode{N}\iref{basic.align}.
 
 \pnum
 \returns