use {{ now }} instead of {{ .Site.Params.version }}; added errorpages

layouts/errorpages/list.html

@@ -0,0 +1,18 @@
+{{ define "stylesheet" }}{{ $sass := resources.Get "scss/errorpages.scss" }}{{ $style := $sass | resources.ToCSS }}
+    <link rel="stylesheet" href="{{ $style.Permalink }}" type="text/css" media="screen" />
+{{ end }}
+
+{{ define "main" }}
+<main>
+  <div class="container">
+    <section>
+      <header>
+        <h1>{{ .Params.heading }}</h1>
+        <span class="subtitle">{{.Params.subheading}}</span>
+      </header>
+      {{.Content}}
+    </section>
+  </div>
+</main>
+{{ end }}
+