docs(socialaccount): add config example for Authelia

* docs(socialaccount): add config example for Authelia

* Update docs/socialaccount/providers/authelia.rst

Co-authored-by: Raymond Penners <raymond.penners@intenct.nl>

* Update docs/socialaccount/providers/authelia.rst

Co-authored-by: Raymond Penners <raymond.penners@intenct.nl>

---------

Co-authored-by: Raymond Penners <raymond.penners@intenct.nl>

Author: noantiq

docs/socialaccount/providers/authelia.rst

@@ -0,0 +1,27 @@
+Authelia
+--------
+
+At the time of writing, `Authelia <https://www.authelia.com/>`__ supports OpenID Connect (OIDC) as a beta feature. Detailed information about the available configuration options can be found on their `website <https://www.authelia.com/configuration/identity-providers/open-id-connect/>`__.
+
+As documented at https://www.authelia.com/integration/openid-connect/introduction/ the Well Known Discovery Endpoint that can be used as the server url is ``https://auth.example.com/.well-known/openid-configuration`` where ``https://auth.example.com/`` should be replaced by the specific url of your instance of Authelia.
+
+An example configuration for authelia would look like this::
+
+
+    SOCIALACCOUNT_PROVIDERS = {
+        "openid_connect": {
+            "APPS": [
+                {
+                    "provider_id": "authelia",
+                    "name": "Authelia SSO",
+                    "client_id": "<insert-id>",
+                    "secret": "<insert-secret>",
+                    "settings": {
+                        "server_url": "https://auth.example.com/.well-known/openid-configuration"
+                    }
+                }
+            ]
+        }
+    }
+
+Note that the client id and the secret must match the configuration in Authelia for this django-allauth app.

docs/socialaccount/providers/index.rst

@@ -42,6 +42,7 @@ Provider Specifics
    apple
    atlassian
    auth0
+   authelia
    authentiq
    baidu
    basecamp