Draw field on new webpage.

Change-Id: Ibf71aa126e51cb6a6110d890c13d0633fbc3087b
diff --git a/y2020/www/field.html b/y2020/www/field.html
new file mode 100644
index 0000000..37452a3
--- /dev/null
+++ b/y2020/www/field.html
@@ -0,0 +1,12 @@
+<html>
+  <head>
+    <script src="flatbuffers.js"></script>
+    <script src="field_main_bundle.min.js" defer></script>
+    <link rel="stylesheet" href="styles.css">
+  </head>
+  <body>
+    <div id="config">
+    </div>
+  </body>
+</html>
+