Adding cell_spec
diff --git a/NAMESPACE b/NAMESPACE
index e100fdf..edbb406 100644
--- a/NAMESPACE
+++ b/NAMESPACE
@@ -4,6 +4,7 @@
 export(add_footnote)
 export(add_header_above)
 export(add_indent)
+export(cell_spec)
 export(collapse_rows)
 export(column_spec)
 export(group_rows)