$ sudo apt install git

 $ mkdir WORK_FOLDER
 $ cd WORK_FOLDER
 $ git clone https://github.com/Fabb2303/Rom_Porter

 $ cd WORK_FOLDER/Rom_Porter
 $ git pull

  Fork my repo
 $ cd WORK_FOLDER
 $ git clone https://github.com/Yourgitname/Rom_Porter
 $ git remote add updates https://github.com/Fabb2303/Rom_Porter
  Make changes
  Upload your changes in your Github page
  $ git add . # this command add all files
 or
  $ git add FILEDIRECTORY
  $ git commit -m "Your changes"
  $ git push origin Romporter
 After this make a pull request

  $ cd WORK_FOLDER/Rom_Porter
  $ git pull

  $ cd WORK_FOLDER/Rom_Porter
  $ . install.sh (Only the first time . The other times use .index.sh)