Add missing Chainer install for GPU if building spaCy from source
@@ -26,6 +26,7 @@ p
+qs({config: 'gpu', os: 'linux'}) export CUDA_HOME=/usr/local/cuda-8.0
+qs({config: 'gpu', os: 'linux'}) export PATH=$PATH:$CUDA_HOME/bin
+qs({config: 'gpu', package: 'pip'}) pip install -U chainer
+ +qs({config: 'gpu', package: 'source'}) pip install -U chainer
+qs({config: 'gpu', package: 'conda'}) conda install -c anaconda chainer
+qs({package: 'pip'}) pip install -U spacy
