Add doctype to playgrounds

reinink · reinink · commit d74d4542a130 · 2023-08-25T10:01:51.000-04:00
diff --git a/index.html b/index.html
@@ -1,3 +1,4 @@
+<!DOCTYPE html>
 <html lang="en">
   <head>
     <meta charset="UTF-8" />
diff --git a/kitchen-sink.html b/kitchen-sink.html
@@ -1,3 +1,4 @@
+<!DOCTYPE html>
 <html lang="en">
   <head>
     <meta charset="UTF-8" />
