Add example of git stash use case for beginners
The stash section explains what git stash does but doesn't give a practical example of when to use it.
**Location** https://docs.gitlab.com/ee/gitlab-basics/basic-git-commands.html
**Current Text** "The git stash command temporarily saves changes that you don’t want to commit immediately. You can switch branches or perform other operations without committing incomplete changes."
**Suggested Fix** Add an example: "For example, if you're working on a feature but need to switch to fix a urgent bug, you can stash your current changes, switch branches, fix the bug, then come back and unstash your work."
**Why This Helps** Real-world examples help beginners understand when to use the command.
## ~"quick win" ~documentation ~Documentation ~"type::documentation"
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