added website code for containerd.io

Signed-off-by: Patrick Chanezon <patlist@chanezon.com>

docs/_config.yml

@@ -0,0 +1,23 @@
+markdown: kramdown
+kramdown:
+  input: GFM
+  html_to_native: true
+  hard_wrap: false
+  syntax_highlighter: rouge
+incremental: true
+permalink: pretty
+safe: false
+lsi: false
+exclude: [README.md]
+
+gems:
+  - jekyll-redirect-from
+  - jekyll-seo-tag
+
+defaults:
+  -
+    scope:
+      path: ""
+      type: "pages"
+    values:
+      layout: default