add HTML5 doctype to all tests

[dygraphs.git] / tests / zero-series.html
diff --git a/tests/zero-series.html b/tests/zero-series.html

index 18366c9..bb6c3b7 100644 (file)
--- a/tests/zero-series.html
+++ b/tests/zero-series.html
@@ -1,3 +1,4 @@
+<!DOCTYPE html>
  <html>
    <head>
      <title>zero series</title>