how to add change to your repository github from the ommand line code example
Example 1: push code to github command line
git add .
git commit -m "message for the commit"
git remote add origin https://url-of-github-repo
git push origin master
Example 2: How to upload a files to a repository on github using gitbash
git init
git add .
git commit -m "message for the commit"
git remote add origin https://url-of-github-repo
git push origin master or git push -f origin master