Add edge to archive list (#5528)

_data/docsarchive/archives.yaml

@@ -2,6 +2,11 @@
   name: v17.09
   image: docs/docker.github.io:latest
   current: true
+# When you make a new stable archive version, move the edge one to be second in
+# the list. The image for edge should be the same as latest.
+- archive:
+  name: Edge
+  image: docs/docker.github.io:latest
 - archive:
   name: v17.06
   image: docs/docker.github.io:v17.06

docsarchive.md

@@ -17,8 +17,11 @@ run:
 ```
 docker run -ti -p 4000:4000 {{ archive.image }}
 ```
+
 {% else %}
 
+{% if archive.name != 'edge' %}
+
 ## {{ archive.name }}
 
 Docs for {{ archive.name }} are accessible at [**https://docs.docker.com/{{ archive.name }}/**](/{{ archive.name }}/), or
@@ -27,5 +30,7 @@ run:
 ```
 docker run -ti -p 4000:4000 {{ archive.image }}
 ```
+
+{% endif %} <!-- edge check -->
 {% endif %}
 {% endfor %}