FIXUP: add missing "."

Author: burblebee

source/templates.tex

@@ -533,7 +533,7 @@
 that names a constant template parameter.
 Such an object can have an address that
 %FIXME: "in-lifetime" is not a thing.
-is not unique among all other in-lifetime objects\iref{intro.object}
+is not unique among all other in-lifetime objects\iref{intro.object}.
 \end{note}
 \begin{note}
 If an \grammarterm{id-expression} names