Add custom logo and custom styles

conf.py

@@ -88,12 +88,21 @@ pygments_style = 'sphinx'
 # a list of builtin themes.
 #
 html_theme = 'sphinx_rtd_theme'
+html_logo = 'images/agaric-logo-horizontal-white.svg'
+html_css_files = [
+    'css/agaric.css',
+]
 
 # 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 = {}
+# TIP: If it starts with `html_` it belongs directly as a conf.py option and
+# NOT in html_theme_options.
+html_theme_options = {
+    'canonical_url': 'https://docs.agaric.coop/',
+    'logo_only': 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,