diff --git a/calendars.md b/calendars.md
index 680b877..9b2bf32 100644
--- a/calendars.md
+++ b/calendars.md
@@ -1,4 +1,4 @@
-## Calendars
+# Calendars
 
 1. Ensure the person has a [May First Movement Technology](https://mayfirst.org/ ) user account.
 2. Log into NextCloud at [share.mayfirst.org](https://share.mayfirst.org/ )
@@ -7,9 +7,9 @@
 5. Ask to be added to the Agaric shared calendar
 
 
-### Integrating NextCloud calendars with Thunderbird
+## Integrating NextCloud calendars with Thunderbird
 
-#### Subscribe to a NextCloud calendar 
+### Subscribe to a NextCloud calendar 
 
 0. In NextCloud web calendar, press the three dots (**···) next to the calendar (your own or a colleagues) which you'd like to have in Thunderbird and press **Copy private link**
   ![Pop-up with the appearance of a dropdown menu next to Clayton's smiling face, with the top item being Edit name and a clipboard icon with Copy private link selected.](images/getting-clayton-calendar.png)