diff --git a/book/_config.yml b/book/_config.yml
index db6bb25..a5762af 100644
--- a/book/_config.yml
+++ b/book/_config.yml
@@ -19,9 +19,9 @@ sphinx:
       use_thebe_lite: true
       exclude_patterns: ["**/_*.yml", "**/*.md", "**/*.ipynb"]
     html_theme_options:
-      repository_url: "url" #add your own repo URL here
-      use_repository_button: true
-      use_issues_button : true
+      # repository_url: "url" #add your own repo URL here
+      # use_repository_button: true
+      # use_issues_button : true
       launch_buttons:
         thebe: true
     html_show_copyright: false