changed doc html layout to alabaster

- make page width 100% of the window
- decrease code font size (seems to big compared to other text)

Change-Id: Id36dffea22163dcbd77303b0aab8c852371ef017

doc/source/conf.py

@@ -99,8 +99,9 @@ default_role = 'any'
 # The theme to use for HTML and HTML Help pages.  See the documentation for
 # a list of builtin themes.
 #
-import sphinx_rtd_theme
-html_theme = 'sphinx_rtd_theme'
+#import sphinx_rtd_theme
+#html_theme = 'sphinx_rtd_theme'
+html_theme = 'alabaster'
 
 # If not None, a 'Last updated on:' timestamp is inserted at every page
 # bottom, using the given strftime format.
@@ -113,7 +114,10 @@ html_last_updated_fmt = '%Y-%m-%d %H:%M'
 # further.  For a list of options available for each theme, see the
 # documentation.
 #
-# html_theme_options = {}
+html_theme_options = {
+    'page_width': '100%',
+    'fixed_sidebar': True,
+}
 
 # Add any paths that contain custom static files (such as style sheets) here,
 # relative to this directory. They are copied after the builtin static files,