[libsecret: 2/13] docs: Document BACKEND_EXTENSION_POINT_NAME

[Niels De Graef <nielsdg src gnome org>]

commit 0457c29dadbed3c99458d2463de8eb3adf20c814
Author: Maximiliano Sandoval R <msandova gnome org>
Date:   Sat Feb 5 20:29:03 2022 +0100

    docs: Document BACKEND_EXTENSION_POINT_NAME

 libsecret/secret-backend.c | 6 ++++++
 1 file changed, 6 insertions(+)
---
diff --git a/libsecret/secret-backend.c b/libsecret/secret-backend.c
index c527f82..d18982a 100644
--- a/libsecret/secret-backend.c
+++ b/libsecret/secret-backend.c
@@ -75,6 +75,12 @@
  * Since: 0.19.0
  */
 
+/**
+ * SECRET_BACKEND_EXTENSION_POINT_NAME:
+ *
+ * Extension point for the secret backend.
+ */
+
 G_DEFINE_INTERFACE_WITH_CODE (SecretBackend, secret_backend, G_TYPE_OBJECT,
                              g_type_interface_add_prerequisite(g_define_type_id, G_TYPE_ASYNC_INITABLE);
 );