update day 5 refs

tutorials/day5/references.md

@@ -12,6 +12,8 @@
 
 ## Architectures
 
+- Conditional Generative Adversarial Nets: https://arxiv.org/abs/1411.1784
+- Auxiliary Classifier GANs: https://arxiv.org/abs/1610.09585
 - DCGAN: https://arxiv.org/abs/1511.06434
 - Progressive growing GANs: https://arxiv.org/abs/1710.10196
 - Self Attention GAN (SAGAN): https://arxiv.org/abs/1805.08318