doc: initial sphinx-based documentation support

The release-notes script now produces Markdown compatible with
pandoc to help convert it into RST for sphinx.

Actual documentation is fairly limited currently.

We use intersphinx to link to various sub-projects' docs.

A .travis.yml file is added to build+publish documentation
when new code is pushed to github.

Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>
diff --git a/doc/testing.rst b/doc/testing.rst
new file mode 100644
index 0000000..6d50b72
--- /dev/null
+++ b/doc/testing.rst
@@ -0,0 +1,8 @@
+Testing op-build
+================
+
+Once a firmware image is built, you will need to test it.
+
+The :ref:`op-test:` ``op-test-framework`` project is where tests are
+developed. See the :ref:`op-test:user-guide` for documentation on running
+the test suite.