add kable_as_image; don't use this feature
diff --git a/DESCRIPTION b/DESCRIPTION
index fcd7c8b..48dc40e 100644
--- a/DESCRIPTION
+++ b/DESCRIPTION
@@ -29,7 +29,8 @@
     xml2,
     rvest,
     rmarkdown (>= 1.6.0),
-    readr
+    readr,
+    magick
 Suggests:
     testthat
 VignetteBuilder: knitr