expand instructions for running the demo

Signed-off-by: Doug Hellmann <doug@doughellmann.com>

.gitignore

@@ -62,3 +62,4 @@ releasenotes/build
 /demo/keys
 /demo/*.retry
 /demo/venv
+/demo/export/*

demo/README.rst

@@ -23,3 +23,22 @@ Using
   ::
 
     $ pip install -r requirements.txt
+
+3. Run the playbook.
+
+  ::
+
+    $ ansible-playbook tiny.yml
+
+4. Deactivate the virtualenv or start a new shell.
+5. Move to the parent directory.
+
+  ::
+
+    $ cd ..
+
+6. Run ``downpour``, using tox to set up a python 3.5 virtualenv.
+
+  ::
+
+    $ tox -e venv -- downpour export demo/tiny-resources.yml demo/export

demo/tiny-resources.yml

@@ -0,0 +1,3 @@
+# Resource file for downpour using the instance created in tiny.yml.
+servers:
+  - name: downpour-demo-tiny