Clarify in the setup instructions that windows users need to follow the git setup instructions for linux on their ubuntu terminal

[buedaswag]

1. students are following the setup instructions https://github.com/LDSSA/LDSA-setup
2. when windows users get to the git setup instructions, we link to some github pages
   
3. for windows users, when visiting in these github pages, the instructions are provided for windows
   
4. however, windows users, need to follow the git setup instructions for linux on their ubuntu terminal, so they would need to select the linux instructions, as shown