Update references

Author: kekmodel

README.md

@@ -52,7 +52,7 @@ tensorboard --logdir=<your out_dir>
 
 ## References
 - [Official TensorFlow implementation of FixMatch](https://github.com/google-research/fixmatch)
-- [Unofficial PyTorch implementation of MixMatch: A Holistic Approach to Semi-Supervised Learning](https://github.com/YU1ut/MixMatch-pytorch)
+- [Unofficial PyTorch implementation of MixMatch](https://github.com/YU1ut/MixMatch-pytorch)
 - [Unofficial PyTorch Reimplementation of RandAugment](https://github.com/ildoonet/pytorch-randaugment)
 - [PyTorch image models](https://github.com/rwightman/pytorch-image-models)