The Git for Windows homepage

https://gitforwindows.org/

Note: if you have the cautious 'Use Git from Git Bash only' setting then you may need to change from bash to cmd at step 2, adjusting the cd path at step 3.

1. git clone https://github.com/git-for-windows/git-for-windows.github.io.git (this repo)
2. Install Node.js (contains the 'npm' package manager)
3. Install Grunt: npm install -g grunt-cli
4. Install Node.js' dependencies: cd git-for-windows.github.io && npm install
5. Run grunt to generate the files
6. Run grunt connect
7. Open http://localhost:4000 in your favorite browser to check the changes.