migrate to reveal 3.2; add tests for all themes
diff --git a/examples/simple.Rmd b/examples/simple.Rmd
index 309f0f5..8a8b485 100644
--- a/examples/simple.Rmd
+++ b/examples/simple.Rmd
@@ -2,7 +2,7 @@
 title: "Untitled"
 output: 
   revealjs::revealjs_presentation:
-    self_contained: false
+    self_contained: true
 ---
 
 ```{r setup, include=FALSE}