Further progress on registry UI.

Add package README view support and style adjustments

registry/src/views/_default.tsx

@@ -0,0 +1,30 @@
+/// <reference path="../types/jsx.d.ts" />
+import { React, Fragment } from "../deps.ts";
+
+export function Main(a: any, children: any) {
+   return (
+      <div style="grid-area: main">
+         <div class="paper">{children}</div>
+      </div>
+   );
+}
+
+export function Menu({}: any, children: any) {
+   return (
+      <div style="grid-area: menu">
+         <div class="paper">
+            <div class="row flex-right">
+               <button class="sm-4">Login</button>
+               <button class="sm-4">SignUp</button>
+            </div>
+            <h3 class="sidebar-title" style="text-align:center">
+               <a href="/" style="all:inherit;">
+                  DenReg
+               </a>
+            </h3>
+
+            {children}
+         </div>
+      </div>
+   );
+}