add HTML5 doctype to all tests

[dygraphs.git] / tests / y-axis-formatter.html
diff --git a/tests/y-axis-formatter.html b/tests/y-axis-formatter.html

index 3853559..0316bc2 100644 (file)
--- a/tests/y-axis-formatter.html
+++ b/tests/y-axis-formatter.html
@@ -1,3 +1,4 @@
+<!DOCTYPE html>
  <html>
      <head>
          <title>dygraph</title>