Document spec_barplot, use roxygen2 7.2.0
diff --git a/NAMESPACE b/NAMESPACE
index 4affb08..e4e8249 100644
--- a/NAMESPACE
+++ b/NAMESPACE
@@ -42,6 +42,7 @@
 export(save_kable)
 export(scroll_box)
 export(spec_angle)
+export(spec_barplot)
 export(spec_boxplot)
 export(spec_color)
 export(spec_font_size)