Fix and cleanup changelog

CHANGELOG.rst

@@ -12,7 +12,7 @@ Unreleased
 Added
 ~~~~~
 
-* OpenID connect scope and accompanying claim `groups`
+* OpenID Connect scope and accompanying claim ``groups``
 * Support config files in JSON format
 
 Changed
@@ -25,6 +25,7 @@ Fixed
 
 * Show link to imprint in footer
 * Fix API for adding OAuth scopes in AppConfigs
+* Removed wrong changelog section
 * Deleting persons is possible again.
 
 Removed
@@ -49,8 +50,8 @@ Fixed
 Removed
 ~~~~~~~
 
-* `OAUTH2_SCOPES` setting in apps is not supported anymore. Use `get_all_scopes` method
-  on `AppConfig` class instead.
+* ``OAUTH2_SCOPES`` setting in apps is not supported anymore. Use ``get_all_scopes`` method
+  on ``AppConfig`` class instead.
 
 
 `2.0rc4`_ - 2021-08-01
@@ -104,9 +105,6 @@ Added
 
 * Add option to disable dashboard auto updating as a user and sitewide.
 
-`2.0rc1` - 2021-06-23
-----------------------
-
 Changed
 ~~~~~~~
 
@@ -178,14 +176,14 @@ Added
 * Allow defining several search configs for LDAP users and groups
 * Use setuptools entrypoints to find apps
 * Add django-cachalot as query cache
-* Add `syncable_fields` property to `ExtensibleModel to discover fields
+* Add ``syncable_fields`` property to ``ExtensibleModel`` to discover fields
   sync backends can write to
-* Add `aleksis-admin` script to wrap django-admin with pre-configured settings
+* Add ``aleksis-admin`` script to wrap django-admin with pre-configured settings
 * Auto-create persons for users if matching attributes are found
-* Add `django-allauth` to allow authentication using OAuth, user registration,
+* Add ``django-allauth`` to allow authentication using OAuth, user registration,
   password changes and password reset
 * Add OAuth2 and OpenID Connect provider support
-* Add `django-uwsgi` to use uWSGI and Celery in development
+* Add ``django-uwsgi`` to use uWSGI and Celery in development
 * Add loading page for displaying Celery task progress
 * Implement generic PDF generation using Chromium
 * Support Amazon S3 storage for /media files
@@ -223,7 +221,7 @@ Changed
 * Default search index backend is now Whoosh with Redis storage
 * Re-style search result page
 * Move notifications to separate page with indicator in menu
-* Move to `BigAutoField` for all AlekSIS apps
+* Move to ``BigAutoField`` for all AlekSIS apps
 * Require Django 3.2 and Python 3.9
 * Person and group lists can now be filtered
 * Allow displaying the default widget to anonymous users