click on fork in top right of page

wait until project fork complete

click on Code and copy url open git bash and type

git clone <url>

cd strm

 git remote add upstram https://github.com/sepehrtolouei/tsrm.git

change everything and commit your changes and push to origin main

git push origin main

open repository on your account click Contribute and click on open pull request

write message and pull it and wait...