Update README file with the latest information.

Add instruction for  newly added "list" command.  Remove outdated
example (tempest.api.identity.admin.test_roles is no longer
existing).

Change-Id: I398bca4461396c213bb451c8c1b5912ed0e6a227

README.rst

@@ -18,8 +18,10 @@ We've created an "easy button" for Ubuntu, Centos, RHEL and openSuSe.
 
    a. -c option allows to specify SHA of commit or branch in Tempest repository
    which will be installed.
-   b. -t option allows to specify tag in Tempest repository
-   which will be installed.
+
+   b. -t option allows to specify tag in Tempest repository which will be installed.
+   For example: execute ./setup_env -t tags/3 to install Tempest tag-3.
+
    c. By default, Tempest will be installed from commit
    7c8fcc67343fc6e968213fddadb8e0e1ea58cbcb (10 Apr 2015).
 
@@ -38,7 +40,13 @@ We've created an "easy button" for Ubuntu, Centos, RHEL and openSuSe.
 4. Validate your setup by running a short test.
 
    `./refstack-client test -c <Path of the tempest configuration file to use>`
-                   `-vv -t "tempest.api.identity.admin.test_roles"`
+                  `-vv -t "tempest.api.identity.admin.v2.test_roles"`
+
+    or
+
+   `./refstack-client test -c <Path of the tempest configuration file to use>`
+                   `-vv -t "tempest.api.identity.v2.test_token"`
+
 
 5. Run a full API test set.
 
@@ -59,13 +67,14 @@ We've created an "easy button" for Ubuntu, Centos, RHEL and openSuSe.
       given string (e.g. '-r my-test' will yield a result file like
       'my-test-0.json').
 
-   **Upload:**
+
+6. Upload test set.
 
    If you previously ran a test with refstack-client without the --upload
    option, you can upload your results to a Refstack API server by using the
    following command:
 
-   ./refstack-client upload <Path of results file>
+   `./refstack-client upload <Path of results file>`
 
    The results file is a JSON file generated by refstack-client when a test has
    completed. This is saved in .tempest/.testrepository. When you use the
@@ -80,6 +89,15 @@ We've created an "easy button" for Ubuntu, Centos, RHEL and openSuSe.
       '~/.ssh/id-rsa' or generate a new one with 'ssh-keygen -b 4096'.
       For now, signed test results can be considereded as private.
 
+
+7. List uploaded test set.
+
+   You can list previously uploaded data from a Refstack API server by using
+   the following command:
+
+   `./refstack-client list --url <URL of the Refstack API server>`
+
+
 **Tempest Hacking**
 
 By default, refstack-client installs Tempest into the `.tempest` directory.
@@ -93,5 +111,3 @@ switching to that directory and using the installed dependencies.
 
 This will make the entire Tempest environment available for you to run,
 including the `run_tempest` script and `testr`.
-
-