docs: fix markdown on release notes

Signed-off-by: Jens Langhammer <jens.langhammer@beryju.org>

website/docs/releases/2021.4.md

@@ -11,10 +11,10 @@ title: Release 2021.4
 
     This can now be configured for the following objects:
 
-        - Applications (access restrictions)
-        - Sources
-        - Flows
-        - Flow-stage bindings
+    - Applications (access restrictions)
+    - Sources
+    - Flows
+    - Flow-stage bindings
 
     For backwards compatibility, this is set to *all*, but new objects will default to *any*.
 
@@ -27,11 +27,11 @@ title: Release 2021.4
 
     While the UI mostly looks the same, under the hood a lot has changed. The Web UI is now a Single-page application based on rollup and lit-html. This has several consequences and new features, for example:
 
-        - You can now see a user's OAuth Access/Refresh tokens and the consents they've given
-        - You can now see a per-object changelog based on the model_create/update/delete events being created.
-        - A new API Browser is available under `https://authentink.company/api/v2beta/`
-        - Several new charts, new pages and quality-of-life improvements
-        - Credentials of objects are no longer while editing them
+    - You can now see a user's OAuth Access/Refresh tokens and the consents they've given
+    - You can now see a per-object changelog based on the model_create/update/delete events being created.
+    - A new API Browser is available under `https://authentink.company/api/v2beta/`
+    - Several new charts, new pages and quality-of-life improvements
+    - Credentials of objects are no longer while editing them
 
 - Deprecated Group membership has been removed.