Fix comments to use 'local.conf' instead of 'localrc'

Instead of 'localrc', 'local.conf' should be used.
Example codes to enable neutron also should follow local.conf syntax.

Change-Id: I4f4c03fdbf0f612e5b518177b29669fb202d9f7a
Closes-Bug: #1407391
diff --git a/stackrc b/stackrc
index be27dce..355c0dc 100644
--- a/stackrc
+++ b/stackrc
@@ -33,7 +33,8 @@
 # For example, to enable Swift add this to ``local.conf``:
 #  enable_service s-proxy s-object s-container s-account
 # In order to enable Neutron (a single node setup) add the following
-# settings in `` localrc``:
+# settings in ``local.conf``:
+#  [[local|localrc]]
 #  disable_service n-net
 #  enable_service q-svc
 #  enable_service q-agt
@@ -529,8 +530,8 @@
 CIRROS_ARCH=${CIRROS_ARCH:-"x86_64"}
 
 # Set default image based on ``VIRT_DRIVER`` and ``LIBVIRT_TYPE``, either of
-# which may be set in ``localrc``.  Also allow ``DEFAULT_IMAGE_NAME`` and
-# ``IMAGE_URLS`` to be set directly in ``localrc``.
+# which may be set in ``local.conf``.  Also allow ``DEFAULT_IMAGE_NAME`` and
+# ``IMAGE_URLS`` to be set in the `localrc` section of ``local.conf``.
 case "$VIRT_DRIVER" in
     openvz)
         DEFAULT_IMAGE_NAME=${DEFAULT_IMAGE_NAME:-ubuntu-12.04-x86_64}