git-bisect: expand page

[waldyrious]

Checklist

• The page(s) are in the correct platform directories: common, linux, osx, windows, sunos, android, etc.
• The page description(s) have links to documentation or a homepage.
• The page(s) follow the content guidelines.
• The page(s) follow the style guide.
• The PR contains at most 5 new pages.
• The PR is authored by me, or has been human-reviewed if it was created with AI or machine translation software.
• The PR title conforms to the recommended templates.
• Version of the command being documented (if known):

[waldyrious]

Thanks all for your suggestions and patience. As I failed to react timely and missed the merge window, I have submitted a small follow-up PR (#19361) which I hope is in line with what was being discussed here.