Index: nfd_22.12/docs/conf.py
===================================================================
--- nfd_22.12.orig/docs/conf.py
+++ nfd_22.12/docs/conf.py
@@ -29,7 +29,7 @@ today_fmt = '%Y-%m-%d'
 # -- General configuration ---------------------------------------------------
 # https://www.sphinx-doc.org/en/master/usage/configuration.html#general-configuration
 
-needs_sphinx = '4.0'
+needs_sphinx = '1.3'
 extensions = [
     'sphinx.ext.extlinks',
     'sphinx.ext.todo',
@@ -56,6 +56,7 @@ exclude_patterns = ['Thumbs.db', '.DS_St
 
 html_theme = 'named_data_theme'
 html_theme_path = ['.']
+master_doc = 'index'
 
 # 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,