Merge branch 'docs_robot_v2'

Signed-off-by: NCleber Rosa <crosa@redhat.com>

docs/source/optional_plugins/index.rst

@@ -9,4 +9,5 @@ The following pages are the documentation for the optical plugins:
 .. toctree::
    :maxdepth: 1
 
-   results.rst
+   results
+   robot

docs/source/optional_plugins/robot.rst

+============
+Robot Plugin
+============
+
+This optional plugin enables Avocado to work with tests originally
+written using the `Robot Framework <http://robotframework.org/>`_ API.
+
+To install the Robot plugin from pip, use::
+
+    $ sudo pip install avocado-framework-plugin-robot
+
+After installed, you can list/run Robot tests the same way you do with
+other types of tests.
+
+To list the tests, execute::
+
+    $ avocado list ~/path/to/robot/tests/test.robot
+
+Directories are also accepted. To run the tests, execute::
+
+    $ avocado run ~/path/to/robot/tests/test.robot