Added column_spec function for HTML and LaTeX
diff --git a/NAMESPACE b/NAMESPACE
index 37f140c..ca49b9d 100644
--- a/NAMESPACE
+++ b/NAMESPACE
@@ -4,6 +4,7 @@
 export(add_footnote)
 export(add_header_above)
 export(add_indent)
+export(column_spec)
 export(group_rows)
 export(kable_styling)
 export(landscape)