Update README.md (#235)

Link to webyclip.com is broken

Author: mimoralea

README.md

@@ -168,6 +168,6 @@ We have accumulated the following to-do list, which we hope to complete in the n
 ## References
 - Wei Liu, et al. "SSD: Single Shot MultiBox Detector." [ECCV2016]((http://arxiv.org/abs/1512.02325)).
 - [Original Implementation (CAFFE)](https://github.com/weiliu89/caffe/tree/ssd)
-- A huge thank you to [Alex Koltun](https://github.com/alexkoltun) and his team at [Webyclip](webyclip.com) for their help in finishing the data augmentation portion.
+- A huge thank you to [Alex Koltun](https://github.com/alexkoltun) and his team at [Webyclip](http://www.webyclip.com) for their help in finishing the data augmentation portion.
 - A list of other great SSD ports that were sources of inspiration (especially the Chainer repo):
   * [Chainer](https://github.com/Hakuyume/chainer-ssd), [Keras](https://github.com/rykov8/ssd_keras), [MXNet](https://github.com/zhreshold/mxnet-ssd), [Tensorflow](https://github.com/balancap/SSD-Tensorflow)