Azure plugin: Update instructions on README file - refs BT#9859

plugin/azure_active_directory/README.md

@@ -1,6 +1,10 @@
 # The Azure Active Directory Plugin
 Allow authentication (with OAuth2) with Microsoft's Azure Active Directory.
 
+This plugin add two extra fields for users:
+- `organisationemail`, the email registered in Azure Active Directory for each user.
+- `azure_id`, to save the internal ID for each user in Azure.
+
 > This plugin use the [`thenetworg/oauth2-azure`](https://github.com/TheNetworg/oauth2-azure) package.
 
 ### To configure Azure Active Directory
@@ -17,5 +21,10 @@ Allow authentication (with OAuth2) with Microsoft's Azure Active Directory.
 * _Management login_: (Optional) Disable the chamilo login and enable an alternative login page for users.   
    You will need copy the `/plugin/azure_active_directory/layout/login_form.tpl` file to `/main/template/overrides/layout/` directory.
 * _Name for the management login_: A name for the management login. By default is "Management Login".
+* And assign a region. Preferably `login_bottom`.
 
-And assign a region. Preferably `login_bottom`.
+Also, you can configure the external login to work with the classic Chamilo form login.
+Adding this line in `configuration.php` file.
+```php
+$extAuthSource["azure"]["login"] = $_configuration['root_sys']."main/auth/external_login/login.azure.php";
+```