Git for GitHub: How to use simple Git commands to manage a GitHub repository (opens in new tab)

Recently, I was working on creating a website on a cloud-based IDE (CodeHS). One night, I was editing, and then when I was done, I simply turned off my monitor and disabled my mouse and keyboard. Then, the next day at school, I continued to work on the website, and made significant changes. When I got home, I made more significant changes, but then realized something very important. What I realized is that when I continued to work on the project at home, the cloud-based IDE hadn't refreshed t...