Update readme.md

Author: lerndevops

docker/daemon/readme.md

@@ -15,4 +15,5 @@ Docker Client:
 
 	The Docker client can reside on the same host as the daemon or connect to a daemon on a remote host. A docker client can communicate with more than one daemon.
 
-                          ![Docker Architecturre](DockerArchitecture.png)
+
+![Docker Architecturre](DockerArchitecture.png style=centerme)