Update README.md

Author: QingyongHu

README.md

@@ -9,12 +9,9 @@ This is the official repository of the **SensatUrban** dataset. For technical de
 **Towards Semantic Segmentation of Urban-Scale 3D Point Clouds: A Dataset, Benchmarks and Challenges** <br />
 [Qingyong Hu](https://qingyonghu.github.io/), [Bo Yang*](https://yang7879.github.io/), [Sheikh Khalid](https://uk.linkedin.com/in/fakharkhalid), 
 [Wen Xiao](https://www.ncl.ac.uk/engineering/staff/profile/wenxiao.html), [Niki Trigoni](https://www.cs.ox.ac.uk/people/niki.trigoni/), [Andrew Markham](https://www.cs.ox.ac.uk/people/andrew.markham/). <br />
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 **[[Paper](http://arxiv.org/abs/2009.03137)] [[Blog](https://zhuanlan.zhihu.com/p/259208850)] [[Video](https://www.youtube.com/watch?v=IG0tTdqB3L8)] [[Project page](https://github.com/QingyongHu/SensatUrban)] [[Download](https://forms.gle/m4HJiqZxnq8rmjc8A)] 
 [[Evaluation](https://competitions.codalab.org/competitions/31519#participate-submit_results)]
-[[Urban3D workshop@ECCV2022](https://urban3dchallenge.github.io/)]
-** <br />
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+[[Urban3D workshop@ECCV2022](https://urban3dchallenge.github.io/)]** <br />
 
 **We are hosting the 2nd Urban3D Challenge at ECCV 2022, please refer to [this page](https://urban3dchallenge.github.io/) for more details.**