Fix command docs generation

Since we added a tripleoclient.v2 namespace, we need to update the auto
doc namespace so it finds the commands.

Change-Id: I7b5266e00af68e1d6efc9cc022fb97d002f5241b
Closes-Bug: #1866410

doc/source/commands.rst

@@ -2,33 +2,33 @@
 All Overcloud Commands
 ======================
 
-.. autoprogram-cliff:: openstack.tripleoclient.v1
+.. autoprogram-cliff:: openstack.tripleoclient.v2
    :command: overcloud *
 
 ==================
 Container Commands
 ==================
 
-.. autoprogram-cliff:: openstack.tripleoclient.v1
+.. autoprogram-cliff:: openstack.tripleoclient.v2
    :command: tripleo container *
 
-.. autoprogram-cliff:: openstack.tripleoclient.v1
+.. autoprogram-cliff:: openstack.tripleoclient.v2
    :command: overcloud container image [!prep]*
 
 ===================
 Undercloud Commands
 ===================
 
-.. autoprogram-cliff:: openstack.tripleoclient.v1
+.. autoprogram-cliff:: openstack.tripleoclient.v2
    :command: undercloud *
 
 ===================
 Standalone Commands
 ===================
 
-.. autoprogram-cliff:: openstack.tripleoclient.v1
+.. autoprogram-cliff:: openstack.tripleoclient.v2
    :command: tripleo deploy
 
-.. autoprogram-cliff:: openstack.tripleoclient.v1
+.. autoprogram-cliff:: openstack.tripleoclient.v2
    :command: tripleo upgrade