add Sonnet

a library for constructing neural networks by Google's DeepMind

Author: Christos

README.md

@@ -441,7 +441,8 @@
 40.[Paddle - PArallel Distributed Deep LEarning by Baidu](https://github.com/baidu/paddle)
 41.[NeuPy - Theano based Python library for ANN and Deep Learning](http://neupy.com)
 42.[Lasagne - a lightweight library to build and train neural networks in Theano](https://github.com/Lasagne/Lasagne)
-43.[nolearn - wrappers and abstractions around existing neural network libraries, most notably Lasagne](https://github.com/dnouri/nolearn)
+43.[nolearn - wrappers and abstractions around existing neural network libraries, most notably Lasagne (https://github.com/dnouri/nolearn)
+44.[Sonnet - a library for constructing neural networks by Google's DeepMind]https://github.com/deepmind/sonnet
 
 
 ### Miscellaneous