Update README.md

Author: ndrplz

README.md

@@ -3,6 +3,11 @@
 
 We started from [this](https://github.com/rogertrullo/pytorch_convlstm/blob/master/conv_lstm.py) implementation and heavily refactored it add added features to match our needs.
 
+Please note that in this repository we implement the following dynamics:
+![CLSTM_dynamics](https://user-images.githubusercontent.com/7113894/59357391-15c73e00-8d2b-11e9-8234-9d51a90be5dc.png)
+
+which is a bit different from the one in the original [paper](https://arxiv.org/pdf/1506.04214.pdf).
+
 ### How to Use
 The `ConvLSTM` module derives from `nn.Module` so it can be used as any other PyTorch module.