diff --git a/README.md b/README.md
index e956c75..50f690f 100644
--- a/README.md
+++ b/README.md
@@ -44,6 +44,9 @@ important fields are:
 - `app_name`, the title of the app
 - `zim_url`, the ZIM online URL (to download to create the app)
 - `enforced_lang`, the language code of the content (and the app UI)
+- 'disable_sidebar', a boolean value, when set to `true`, it hides the sidebar
+- 'disable_tabs', a boolean value, when set to `true`, it deactivates the multi-tabs feature
+- 'disable_read_aloud', a boolean value, when set to `true`, it disable the text-to-speech feature
 
 You can also create this new file using Github IO. Go to
 https://github.com/kiwix/kiwix-android-custom/new/master and type