Add quillt structure and template (#108)

diff --git a/DESCRIPTION b/DESCRIPTION
index 02829c9..4b43cf9 100644
--- a/DESCRIPTION
+++ b/DESCRIPTION
@@ -35,6 +35,7 @@
 Suggests:
     covr,
     testthat
+Config/needs/website: rstudio/pkgdown, rstudio/quillt
 Encoding: UTF-8
 Roxygen: list(markdown = TRUE)
 RoxygenNote: 7.1.2