duplicated the (docker#957)

Signed-off-by: Jie Luo <[email protected]>

Author: luojie233

datacenter/ucp/2.0/guides/installation/plan-production-install.md

@@ -14,7 +14,7 @@ deploying Docker Universal Control Plane for production.
 Before installing UCP you should make sure that all nodes (physical or virtual
 machines) that you'll manage with UCP:
 
-* [Comply the the system requirements](system-requirements.md)
+* [Comply the system requirements](system-requirements.md)
 * Are running the same version of CS Docker Engine
 
 ## Hostname strategy

engine/swarm/ingress.md

@@ -119,7 +119,7 @@ the swarm. The swarm nodes can reside on a private network that is accessible to
 the proxy server, but that is not publicly accessible.
 
 You can configure the load balancer to balance requests between every node in
-the swarm even if the there are no tasks scheduled on the node. For example, you
+the swarm even if there are no tasks scheduled on the node. For example, you
 could have the following HAProxy configuration in `/etc/haproxy/haproxy.cfg`:
 
 ```bash

notary/reference/server-config.md

@@ -235,7 +235,7 @@ DB storage example:
 		<td valign="top">yes if not <code>memory</code></td>
 		<td valign="top">The <a href="https://github.com/go-sql-driver/mysql">
 			the Data Source Name used to access the DB.</a>
-			(note: please include <code>parseTime=true</code> as part of the the DSN)</td>
+			(note: please include <code>parseTime=true</code> as part of the DSN)</td>
 	</tr>
 </table>
 

swarm/discovery.md

@@ -181,7 +181,7 @@ swarm is connected to the public internet. To create your cluster:
 
 2. Create each node and join them to the cluster.
 
-    On each of your nodes, start the swarm agent. The node IP address doesn't have to be public (eg. 192.168.0.X) but the the Swarm manager must be able to access it.
+    On each of your nodes, start the swarm agent. The node IP address doesn't have to be public (eg. 192.168.0.X) but the Swarm manager must be able to access it.
 
         $ swarm join --advertise=<node_ip:2375> token://<cluster_id>