diff --git a/vignettes/design.Rmd b/vignettes/design.Rmd
new file mode 100644
index 0000000..a5488ea
--- /dev/null
+++ b/vignettes/design.Rmd
@@ -0,0 +1,15 @@
+---
+title: "Design"
+output: rmarkdown::html_vignette
+vignette: >
+  %\VignetteIndexEntry{design}
+  %\VignetteEngine{knitr::rmarkdown}
+  %\VignetteEncoding{UTF-8}
+---
+
+```{r, include = FALSE}
+knitr::opts_chunk$set(
+  collapse = TRUE,
+  comment = "#>"
+)
+```