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Add info invalid references (#17224)
* Add info invalid references

The example shows a configuration that would raise a invalid image reference error if the environment variable for the image is set to an empty string or is not set at all.

Also the code format ticks included the period.

#17192

A warning was added to highlight the incorrect configuration and the ticks now exclude the period.

* Apply suggestions from code review

---------

Co-authored-by: Allie Sadler <102604716+aevesdocker@users.noreply.github.com>
2023-05-09 14:00:05 +01:00
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README.md

Docs @ Docker

Welcome to Docker Documentation

Welcome to the Docker Documentation repository. This is the source for https://docs.docker.com/.

Feel free to send us pull requests and file issues. Our docs are completely open source and we deeply appreciate contributions from the Docker community!

Provide feedback

Wed love to hear your feedback. Please file documentation issues only in the docs GitHub repository. You can file a new issue to suggest improvements or if you see any errors in the existing documentation.

Before submitting a new issue, check whether the issue has already been reported. You can join the discussion using an emoji, or by adding a comment to an existing issue. If possible, we recommend that you suggest a fix to the issue by creating a pull request.

You can ask general questions and get community support through the Docker Community Slack. Personalized support is available through the Docker Pro, Team, and Business subscriptions. See Docker Pricing for details.

If you have an idea for a new feature or behavior change in a specific aspect of Docker, or have found a product bug, file that issue in the project's code repository.

We've made it really easy for you to file new issues.

  • Click New issue on the docs repository and fill in the details, or

  • Click Request docs changes in the right column of every page on docs.docker.com and add the details, or

    Request changes link

  • Click the Give feedback link on the side of every page in the docs.

    Docs feedback on each page

Contribute to Docker docs

We value your contribution. We'd like to make it as easy as possible to submit your contributions to the Docker docs repository. Changes to the docs are handled through pull requests against the master branch. To learn how to contribute, see our Contribute section.

Copyright 2013-2023 Docker, inc, released under the Apache 2.0 license .