Add a README file for the documentation. And fix the language paramet…

…er in the conf.py file for the english version.

docs/README.rst

@@ -0,0 +1,34 @@
+E-Maj Documentation
+===================
+
+The documentation can be reached at http://emaj.readthedocs.io/
+
+
+Compile the doc
+---------------
+
+* Install Sphinx (here in debian style) ::
+
+   apt-get install python-sphinx
+
+
+* Get the Sphinx Theme
+
+Install the [Read The Doc theme](https://github.com/snide/sphinx_rtd_theme)::
+
+   pip install sphinx_rtd_theme
+
+And then add the following lines to the ``conf.py`` file::
+
+   import sphinx_rtd_theme
+   html_theme = "sphinx_rtd_theme"
+   html_theme_path = [sphinx_rtd_theme.get_html_theme_path()]
+
+
+* Build:: 
+
+   cd docs/<selected_language>
+   make html
+
+The resulting files are then located under docs/<language>/_build/html.
+

docs/en/conf.py

@@ -63,7 +63,7 @@
 #
 # This is also used if you do content translation via gettext catalogs.
 # Usually you set "language" from the command line for these cases.
-language = None
+language = 'English'
 
 # List of patterns, relative to source directory, that match files and
 # directories to ignore when looking for source files.