Add AppImage topic

[ArqamQazi]

Please confirm this pull request meets the following requirements:

• I followed the contributing guidelines: https://github.com/github/explore/blob/main/CONTRIBUTING.md.
• This change is not self-promotion.

Which change are you proposing?

• Suggesting edits to an existing topic or collection
• Curating a new topic or collection
• Something that does not neatly fit into the binary options above

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Curating a new topic or collection

• I've formatted my changes as a new folder directory, named for the topic or collection as it appears in the URL on GitHub (e.g. https://github.com/topics/[NAME] or https://github.com/collections/[NAME])
• My folder contains a *.png image (if applicable) and index.md
• All required fields in my index.md conform to the Style Guide and API docs: https://github.com/github/explore/tree/main/docs

AppImage is a widely used format for distributing portable software on Linux. It is utilized by many open source projects hosted on GitHub to distribute their applications without requiring root permissions. Curating this topic will help developers easily discover repositories related to AppImage creation, tooling, and packaged applications, complementing similar existing topics like flatpak.

[github-actions]

Maintainer triage

Topics

• appimage — 1,050 repositories — topic page