diff --git a/doc/src/GANS/GenerativeAdversarialNetworks.do.txt b/doc/src/GANS/GenerativeAdversarialNetworks.do.txt
index 32269afb6..0a263d362 100644
--- a/doc/src/GANS/GenerativeAdversarialNetworks.do.txt
+++ b/doc/src/GANS/GenerativeAdversarialNetworks.do.txt
@@ -1,3 +1,5 @@
+# Todo: correct codes and add material
+
 ======= Generative Models =======
 _Generative models_ describe a class of statistical models that are a contrast
 to _discriminative models_. Informally we say that generative models can