git-prune: add page

[sanehab]

• The page (if new), does not already exist in the repo.
• The page is in the correct platform directory (common/, linux/, etc.)
• The page has 8 or fewer examples.
• The PR title conforms to the recommended templates.
• The page follows the content guidelines.
• The page description includes a link to documentation or a homepage (if applicable).

[sanehab]

I'm interested in joining tldr to contribute more than just adding new pages, i can help with git and linux commands.

[navarroaxel]

I'm interested in joining tldr to contribute more than just adding new pages, i can help with git and linux commands.

@sanehab You should merge 5 non-trivial PRs to be allowed to become a collaborator. 💪

[navarroaxel]

Thanks @sanehab, just 1 comment.

[owenvoke]

Nice job, thanks @sanehab! 👏🏻