Bump UCP version to beta1; fix link to architecture topic (#350)

_config.yml

@@ -185,7 +185,7 @@ defaults:
     values:
       ucp_org: "docker"
       ucp_repo: "ucp"
-      ucp_version: "3.0.0"
+      ucp_version: "3.0.0-beta1"
   - scope:
       path: "datacenter/ucp/2.2"
     values:

datacenter/ucp/3.0/guides/index.md

@@ -76,5 +76,5 @@ that use Docker images you know and trust.
 
 ## Where to go next
 
-* [UCP architecture](architecture.md)
+* [UCP architecture](/enterprise/ucp-architecture.md)
 * [Install UCP](admin/install/index.md)

enterprise/docker-ee-architecture.md

@@ -1,13 +1,7 @@
 ---
 title: Docker EE architecture
-description: |
+description: Learn about the architecture of Docker Enterprise Edition and how it delivers high availability for your workloads. 
-  Learn about the architecture of Docker Enterprise Edition and how it delivers high availability for your workloads. 
 keywords: Docker EE, UCP, DTR,  architecture, orchestration, Kubernetes, Swarm, cluster, high availability
-next_steps:
-- path: ucp-architecture
-  title: UCP architecture
-- path: dtr-architecture
-  title: DTR architecture
 ---
 
 Docker Enterprise Edition (EE) enables deploying your workloads for high
@@ -104,7 +98,9 @@ All DTR replicas run the same set of services, and changes to their configuratio
 are automatically propagated to other replicas.
 [Learn about DTR architecture](dtr-architecture.md).
 
+## Where to go next
 
-
+- [UCP architecture](ucp-architecture.md)
+- [DTR architecture](dtr-architecture.md)