I run a business and I am not an engineer. Help me set up my first GitHub repo and make my first commit, explaining each step in one plain sentence before you do it.
1. Check whether Git and the GitHub tool are installed. If not, tell me the exact command to install them and wait.
2. Create a private repo named [name] with a README that says what the project is for.
3. Add my brain file to it.
4. Make the first commit with a clear message and show me what the commit looks like.
5. Create a branch for the next piece of work and explain, in two sentences, why you did not work on main.
Do not run any command that deletes or overwrites files without asking me first.