oidc dokumentation

testserver/docker_matrix/templates/README

-the rest-auth_provider is from https://githubcom/ma1uta/matrix-synapse-rest-password-provider/
+
+Funktionierende oidc-Konfiguration mit authentik
+  - https://www.youtube.com/watch?v=MwOh4NvPdtQ
+  - https://github.com/matrix-org/tutorial-oidc-playground
+

testserver/docker_matrix/templates/synapse-data/homeserver.yaml

@@ -105,7 +105,7 @@ oidc_providers:
       config:
         subject_claim: "preferred_username"
         localpart_template: "{% raw %}{{ user.preferred_username }}{% endraw %}"
-        display_name_template: "{% raw %}{{ user.preferred_username }}{% endraw %}"
+        display_name_template: "{% raw %}{{ user.name }}{% endraw %}"
         email_template: "{% raw %}{{ user.email }}{% endraw %}"