GitHub is one of the most popular sources and this year GitHub featured a lot of open source projects. It also saw a record number of new users coming to GitHub and hosted over 100 million repositories. While there have been a lot of projects, there were a few that grabbed more popularity than the others. In this article, we list the top 10 open source projects by unique contributors that were used the most, which is largely decided by the number of stars received by the projects. BERT or Bidirectional Encoder Representations from Transformers is an all-new method of pre-training language representations. It is the first unsupervised, deeply bidirectional system for pre-training natural language processing (NLP) and obtains new state-of-the-art results on eleven NLP tasks.