doc: spell check swarm in discovery readme

Signed-off-by: Raoof Mohammed <raoof.md@gmail.com>
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Raoof Mohammed 2015-10-02 13:19:45 -04:00 committed by Raoof Mohammed
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@ -11,7 +11,7 @@ Docker Swarm comes with multiple Discovery backends.
## Backends
You use a hosted discovery service with Docker Swarm. The service
maintains a list of IPs in your swam. There are several available
maintains a list of IPs in your swarm. There are several available
services, such as `etcd`, `consul` and `zookeeper` depending on what
is best suited for your environment. You can even use a static
file. Docker Hub also provides a hosted discovery service which you