Add outdated banner (#3)

cf.

- vuejs/012.vuejs.org#69
- vuejs/012.vuejs.org#68

Signed-off-by: Takuya Noguchi <[email protected]>

Author: tnir

README.md

@@ -38,5 +38,6 @@ $ hexo server
 - [pocke](https://github.com/pocke)
 - [showwin](https://github.com/showwin)
 - [sunya9](https://github.com/sunya9)
+- [tnir](https://github.com/tnir)
 - [y-yagi](https://github.com/y-yagi)
 - [zakuro9715](https://github.com/zakuro9715)

themes/vue/layout/layout.ejs

@@ -36,6 +36,7 @@
         <% } %>
 
         <script src="https://cdnjs.cloudflare.com/ajax/libs/fastclick/1.0.6/fastclick.min.js"></script>
+        <script src="https://cdn.jsdelivr.net/gh/tnir/[email protected]/prompt.min.js"></script>
         <script>
             document.addEventListener('DOMContentLoaded', function() {
                 FastClick.attach(document.body);