[mdspan.mdspan.overview] Fix misplacing for \exposid and .

Author: frederick-vs-ja

source/containers.tex

@@ -23238,7 +23238,7 @@
     constexpr bool is_exhaustive() const
       { return @\exposid{map_}@.is_exhaustive(); }
     constexpr bool is_strided() const
-      { return @\exposid{map_.}@is_strided(); }
+      { return @\exposid{map_}@.is_strided(); }
     constexpr index_type stride(rank_type r) const
       { return @\exposid{map_}@.stride(r); }