Sidebar enhancement

Added the Architecture and the Setting up ONAP pages to the sidebar

Issue-ID: DOC-401

Change-Id: I90261a5abf2aebd603692c05d6a7a29ce1decddc
Signed-off-by: Andrea Visnyei <andrea.visnyei@nokia.com>
diff --git a/docs/conf.py b/docs/conf.py
index 857ab93..aa98ecd 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -96,7 +96,7 @@
 # List of patterns, relative to source directory, that match files and
 # directories to ignore when looking for source files.
 exclude_patterns = [
-	'_build' 
+	'_build'
 	]
 
 # The reST default role (used for this markup: `text`) to use for all
@@ -137,8 +137,9 @@
 # Theme options are theme-specific and customize the look and feel of a theme
 # further.  For a list of options available for each theme, see the
 # documentation.
-html_theme_options = {'style_nav_header_background': 'white',
-						'sticky_navigation': False}
+html_theme_options = {	'style_nav_header_background': 'white',
+						'sticky_navigation': False,
+						'collapse_navigation': False}
 
 # Add any paths that contain custom themes here, relative to this directory.
 #html_theme_path = sphinx_bootstrap_theme.get_html_theme_path()