Added Linux Resources pages

These are the pages that are currently on djs-consulting.com; we'll
redirect them here

themes/mantraish/layout/_partial/header.pug

@@ -12,5 +12,7 @@ header#header
       div(style='clear:both;')
     nav#access.jssafe(role='navigation')
       .skip-link.screen-reader-text: a(href='#content' title='Skip to content') Skip to content
-      #prime_nav.menu: ul: li: a(href='/') Home
+      #prime_nav.menu: ul
+        li: a(href='/') Home
+        li: a(href='/linux/') Linux Resources
   div(style='clear:both;')

themes/mantraish/layout/page.pug

@@ -0,0 +1,11 @@
+extends base
+
+block title
+  = page.title
+  != ' « '
+  = config.title
+
+block content
+  .post.single.hentry
+    h1.entry-title= page.title
+    .entry-content!= page.content