website: document the new docker post-processors

website/source/docs/post-processors/docker-save.html.markdown

+---
+layout: "docs"
+page_title: "docker-save Post-Processor"
+---
+
+# Docker Save Post-Processor
+
+Type: `docker-save`
+
+The Docker Save post-processor takes an artifact from the
+[docker builder](/docs/builders/docker.html) that was committed
+and saves it to a file. This is similar to exporting the Docker image
+directly from the builder, except that it preserves the hierarchy of
+images and metadata.
+
+We understand the terminology can be a bit confusing, but we've
+adopted the terminology from Docker, so if you're familiar with that, then
+you'll be familiar with this and vice versa.
+
+## Configuration
+
+The configuration for this post-processor is extremely simple.
+
+* `path` (string) - The path to save the image.
+
+## Example
+
+An example is shown below, showing only the post-processor configuration:
+
+<pre class="prettyprint">
+{
+  "type": "docker-save",
+  "path": "foo.tar"
+}
+</pre>

website/source/docs/post-processors/docker-tag.html.markdown

+---
+layout: "docs"
+page_title: "docker-tag Post-Processor"
+---
+
+# Docker Tag Post-Processor
+
+Type: `docker-tag`
+
+The Docker Tag post-processor takes an artifact from the
+[docker builder](/docs/builders/docker.html) that was committed
+and tags it into a repository. This allows you to use the other
+Docker post-processors such as
+[docker-push](/docs/post-processors/docker-push.html) to push the image
+to a registry.
+
+This is very similar to the [docker-import](/docs/post-processors/docker-import.html)
+post-processor except that this works with committed resources, rather
+than exported.
+
+## Configuration
+
+The configuration for this post-processor is extremely simple. At least
+a repository is required.
+
+* `repository` (string) - The repository of the image.
+
+* `tag` (string) - The tag for the image. By default this is not
+  set.
+
+## Example
+
+An example is shown below, showing only the post-processor configuration:
+
+<pre class="prettyprint">
+{
+  "type": "docker-tag",
+  "repository": "mitchellh/packer",
+  "tag": "0.7"
+}
+</pre>
+
+This example would take the image created by the Docker builder
+and tag it into the local Docker process with a name of `mitchellh/packer:0.7`.
+
+Following this, you can use the
+[docker-push](/docs/post-processors/docker-push.html)
+post-processor to push it to a registry, if you want.

website/source/layouts/docs.erb

@@ -60,6 +60,8 @@
 			<li><h4>Post-Processors</h4></li>
 			<li><a href="/docs/post-processors/docker-import.html">docker-import</a></li>
 			<li><a href="/docs/post-processors/docker-push.html">docker-push</a></li>
+			<li><a href="/docs/post-processors/docker-save.html">docker-save</a></li>
+			<li><a href="/docs/post-processors/docker-tag.html">docker-tag</a></li>
 			<li><a href="/docs/post-processors/vagrant.html">Vagrant</a></li>
 			<li><a href="/docs/post-processors/vagrant-cloud.html">Vagrant Cloud</a></li>
 			<li><a href="/docs/post-processors/vsphere.html">vSphere</a></li>