activate sphinx theme

docs/conf.py

@@ -98,7 +98,7 @@ pygments_style = 'sphinx'
 
 # The theme to use for HTML and HTML Help pages.  See the documentation for
 # a list of builtin themes.
-html_theme = 'default'
+html_theme = "sphinx_rtd_theme"
 
 # 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
@@ -106,7 +106,7 @@ html_theme = 'default'
 #html_theme_options = {}
 
 # Add any paths that contain custom themes here, relative to this directory.
-#html_theme_path = []
+html_theme_path = ["_themes", ]
 
 # The name for this set of Sphinx documents.  If None, it defaults to
 # "<project> v<release> documentation".