Change Task titles to imperative: Access Extend. (#4029)

_data/tasks.yml

@@ -88,7 +88,7 @@ toc:
   - title: Use Explorer to Examine the Runtime Environment
     path: https://github.com/kubernetes/kubernetes/tree/release-1.5/examples/explorer
 
-- title: Accessing and Extending the Kubernetes API
+- title: Access and Extend the Kubernetes API
   section:
   - docs/tasks/access-kubernetes-api/http-proxy-access-api.md
   - docs/tasks/access-kubernetes-api/extend-api-third-party-resource.md

docs/tasks/access-kubernetes-api/extend-api-third-party-resource.md

@@ -1,7 +1,7 @@
 ---
 assignees:
 - IanLewis
-title: Extending the Kubernetes API Using Third Party Resources
+title: Extend the Kubernetes API Using Third Party Resources
 redirect_from:
 - "/docs/user-guide/thirdpartyresources/"
 - "/docs/user-guide/thirdpartyresources.html"

docs/tasks/access-kubernetes-api/http-proxy-access-api.md

@@ -1,5 +1,5 @@
 ---
-title: Using an HTTP Proxy to Access the Kubernetes API
+title: Use an HTTP Proxy to Access the Kubernetes API
 redirect_from:
 - "/docs/user-guide/connecting-to-applications-proxy/"
 - "/docs/user-guide/connecting-to-applications-proxy.html"