podman-*: add shorthand, remove =, update description

[znarfm]

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): 5.7.0
• Reference issue: #

[znarfm]

I have no idea what seems to be triggering the error. I don't see any deviations.

Found it

[tldr-bot]

Hello! I've noticed something unusual when checking this PR at commit
2d65c0157f6222dc9bd724355bd657be7930637d:

• The page pages.es/common/podman-build.md has a more info link that does not match the one in the English page. Please check the "More information:" translation as well using https://github.com/tldr-pages/tldr/blob/main/contributing-guides/translation-templates/more-info-link.md.

Is this intended? If so, just ignore this comment. Otherwise, please double-check the commits.

[tldr-bot]

The build for this PR failed with the following error(s) at commit
2d65c0157f6222dc9bd724355bd657be7930637d:

pages.es/common/podman-build.md:
Error: Parse error on line 6:
...man-build.1.html>.- Crea una imagen us
---------------------^
Expecting 'BACKTICK', got 'DASH'
pages.es/common/podman-build.md:4: TLDR102 Example description probably not properly annotated

Please fix the error(s) and push again.