Staging Changes with git add

The `git add` command is a crucial step in the Git workflow. It moves changes from your working directory to the 'staging area' (also known as the 'index'). The staging area is an intermediate space where you can prepare and review a set of changes before officially recording them in a commit. This two-step process—adding and then committing—gives you precise control over your project's history. Instead of committing all changes at once, you can carefully select related modifications and group them into a single, logical commit. For example, you might have fixed a bug and added a new feature in different files. The staging area allows you to create two separate commits: one for the bug fix and one for the new feature. You can add a specific file with `git add <filename>` or add all modified and new files in the current directory with `git add .`. This intentional staging is a powerful feature that encourages well-organized and meaningful commits.