Step 1:

    Create a repository on Github. Visit github.com.

Step 2:

   Initialize Git
   git init

Step 3:

   Add files to repository.
   git add .

Step 3:

   Commit your added files to repository.
   git commit -m "changes info"

Step 4:

   Copy the repository url
   git remote add origin  url

Step 5:

   Push your changes to master branch
   git push origin master or git push -f origin master