Fix changelog format

CHANGELOG.rst

@@ -50,13 +50,17 @@ Added
 ~~~~~
 
 * Global calendar system
+
   * CalDAV and CardDAV for syncing calendars and Persons read-only.
   * Calendar for birthdays of persons
   * Management of personal calendar events.
   * Holiday model to track information about holidays.
+
 * Following management views were added:
+
   * Rooms
   * Holiday
+
 * Global school term select for limiting data to a specific school term.
 * Error message when loading in incompatible browser
 * Tooltips for every information in the person page
@@ -84,10 +88,12 @@ Changed
 ~~~~~~~
 
 * Following management views were migrated to new frontend:
+
   * School Terms
   * Announcements
   * OAuth Applications
   * Persons
+  
 * Content width on different screen sizes is more consistent.
 * Room model icon changed from the default to a specific one.
 * Show only short name, if available, in announcement recipients