correct indent.

README.md

@@ -506,8 +506,8 @@ Comparison of NoSQL servers: http://kkovacs.eu/cassandra-vs-mongodb-vs-couchdb-v
   * [etcd](https://github.com/coreos/etcd) - distributed K/V-Store, authenticating via SSL PKI and a REST HTTP Api for shared configuration and service discovery.
   * [ZooKeeper](http://zookeeper.apache.org/) - ZooKeeper is a centralized service for maintaining configuration information, naming, providing distributed synchronization, and providing group services.
 
-  ## Software Containers
-  *Operating system–level virtualization.*
+## Software Containers
+*Operating system–level virtualization.*
 
   * [Docker](http://www.docker.com/) - Platform for developers and sysadmins to build, ship, and run distributed applications.
   * [LXC](https://linuxcontainers.org/lxc/) - Userspace interface for the Linux kernel containment features.