Set default page.version

Author: toshimaru

_config.yml

@@ -22,6 +22,7 @@ defaults:
   - scope:
       path: ""
     values:
+      version: 6.0
       image: https://avatars.githubusercontent.com/u/4223
       toc: true
   - scope:

src/_layouts/default.html

@@ -31,9 +31,8 @@
       <li class="nav-item text-nowrap p-1">
         <div class="dropdown">
           <a class="dropdown-toggle nav-link" href="#" role="button" id="dropdownMenuLink" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">
-            v{{ site.default_rails_version }}
+            v{{ page.version }}
           </a>
-        
           <div class="dropdown-menu dropdown-menu-md-right" aria-labelledby="dropdownMenuLink">
             <a class="dropdown-item" href="/">v6.0</a>
             <a class="dropdown-item" href="/5.2/">v5.2</a>