Fix links to individual pages in docs

docs/README.md

@@ -61,5 +61,9 @@ see:
 * [Contributing to documentation](contributing/documentation.md) -
   how to build docs locally, docs patterns and tips.
 
+* [Development environment](contributing/development_environment.md) -
+  how set up a local development environment where Adoption can be
+  executed (either manually or via the test suite).
+
 * [Tests](contributing/tests.md) -
   information about the test suite and how to run it.

mkdocs.yml

@@ -27,6 +27,7 @@ theme:
 nav:
   - Overview: README.md
   - OpenStack:
+    - openstack/planning.md
     - openstack/backend_services_deployment.md
     - oepsntack/pull_openstack_configuration.md
     - openstack/stop_openstack_services.md
@@ -40,8 +41,8 @@ nav:
     - openstack/cinder_adoption.md
     - openstack/horizon_adoption.md
     - openstack/edpm_adoption.md
-    - openstack/troubleshooting.md
     - openstack/ironic_adoption.md
+    - openstack/troubleshooting.md
   - Ceph:
     - Ceph RBD migration: ceph/ceph_rbd.md
     - Ceph RGW migration: ceph/ceph_rgw.md