doc: add more details to openid spec

docs/content/doc/setup/openid.md

@@ -95,7 +95,7 @@ It depends on the provider being used as well as the preferences of the administ
 Typically you'd want to request an additional scope (e.g. `vikunja_scope`) which then triggers the identity provider to add the claim.
 If the `vikunja_groups` is part of the **ID token**, Vikunja will  start the procedure and import teams and team memberships.
 
-The claim structure expexted by Vikunja is as follows:
+The minimal claim structure expected by Vikunja is as follows:
 
 ```json
 {
@@ -112,6 +112,21 @@ The claim structure expexted by Vikunja is as follows:
 }
 ```
 
+It also also possible to pass the description and isPublic flag as optional parameter. If not present, the description will be empty and project visibility defaults to false.
+
+```json
+{
+    "vikunja_groups": [
+        {
+            "name": "team 3",
+            "oidcID": 33349,
+						"description": "My Team Description",
+						"isPublic": true
+        },
+    ]
+}
+```
+
 For each team, you need to define a team `name` and an `oidcID`, where the `oidcID` can be any string with a length of less than 250 characters.
 The `oidcID` is used to uniquely identify the team, so please make sure to keep this unique.