Format and structure fixes for docs

docs/configuration/account.md

@@ -0,0 +1,27 @@
+# Twingle account settings on the Twingle website
+
+The use of the Twingle API extension requires that you already have a Twingle
+account and that you make some settings in this account for the connection.
+
+You will have to provide the following settings in your Twingle account settings
+in order to send donations to CiviCRM:
+
+1. API key from your Twingle user
+2. Site key
+3. URL
+
+Important: The URL must always be the complete URL to the CiviCRM REST API
+endpoint.
+Examples:
+
+- Drupal (with the *AuthX* extension): https://example.org/civicrm/ajax/rest
+- Drupal (legacy
+  method): https://example.org/sites/all/modules/civicrm/extern/rest.php
+- Wordpress (with CiviCRM <
+  5.25): https://example.org/wp-content/plugins/civicrm/civicrm/extern/rest.php
+- Wordpress (with CiviCRM
+  5.25+): https://example.org/wp-json/civicrm/v3/rest
+
+For detailled information, please see
+the [Twingle documentation](https://support.twingle.de/faq/de-de/9-anbindung-externer-systeme/46-wie-kann-ich-civicrm-mit-twingle-nutzen) (
+in German language only).