move diagram

README.md

@@ -3,14 +3,14 @@
 Weave creates a virtual network that connects Docker containers
 deployed across multiple hosts.
 
+![Weave Virtual Network](/docs/virtual-network.png?raw=true "Weave Virtual Network")
+
 Applications use the network just as if the containers were all
 plugged into the same network switch, with no need to configure port
 mappings, links, etc. Services provided by application containers on
 the weave network can be made accessible to the outside world,
 regardless of where those containers are running.
 
-![Weave Virtual Network](/docs/virtual-network.png?raw=true "Weave Virtual Network")
-
 Weave can optionally encrypt traffic, allowing hosts to be connected
 across an untrusted network.