add EltwiseLayer docstring

diff --git a/include/caffe/vision_layers.hpp b/include/caffe/vision_layers.hpp
index 1b5da11..3acb8df 100644 (file)
--- a/include/caffe/vision_layers.hpp
+++ b/include/caffe/vision_layers.hpp
@@ -113,6 +113,7 @@ class ConvolutionLayer : public Layer<Dtype> {
 };
 
 /* EltwiseLayer
+  Compute elementwise operations like product or sum.
 */
 template <typename Dtype>
 class EltwiseLayer : public Layer<Dtype> {