chore: add placeholder page

Author: daKmoR

live/index.html

@@ -0,0 +1,20 @@
+<style>
+  body {
+    height: 100vh;
+    overflow: hidden;
+    display: flex;
+    flex-direction: column;
+    justify-content: center;
+    align-items: center;
+  }
+
+  div {
+    text-align: center;
+  }
+</style>
+
+<div>
+  Nothing to so here so far. <br />
+  Please go to
+  <a href="https://open-wc.org/mdjs/">https://open-wc.org/mdjs/</a> for now.
+</div>