add HTML5 doctype to all tests

[dygraphs.git] / tests / two-axes.html
diff --git a/tests/two-axes.html b/tests/two-axes.html

index 1afd13b..d81e10c 100644 (file)
--- a/tests/two-axes.html
+++ b/tests/two-axes.html
@@ -1,3 +1,4 @@
+<!DOCTYPE html>
  <html>
    <head>
      <title>Multiple y-axes</title>