Added ggplot2 to Imports #minor

jhollway · jhollway · commit f0c34d773725 · 2020-06-30T16:59:48.000+02:00
diff --git a/DESCRIPTION b/DESCRIPTION
@@ -13,7 +13,8 @@ RoxygenNote: 7.1.0
 Imports: igraph,
     geosphere,
     threejs,
-    roxygen2
+    roxygen2,
+    ggplot2
 Suggests: 
     testthat,
     knitr,
