Fix issues when generating docs

docs/api/notifications/node.deleted.json

@@ -0,0 +1,3 @@
+{
+    "a": "b"
+}

docs/api/notifications/node.updated.json

@@ -0,0 +1,3 @@
+{
+    "a": "b"
+}

docs/curl.rst

@@ -576,7 +576,7 @@ Read :doc:`project_notifications` for more information.
 
 
 Where to find the endpoints?
-###########################
+############################
 
 A list of all endpoints is available: :doc:`endpoints`
 

docs/project_notifications.rst

@@ -105,7 +105,7 @@ snapshot.restored
 
 A snapshot has been restored
 
-.. literalinclude:: api/notifications/project.snapshot_restored.json
+.. literalinclude:: api/notifications/snapshot.restored.json
 
 log.error
 ---------