Rename dotnet-upgrade.prompts.md to dotnet-upgrade.prompt.md

[oleksiyyurchyna]

Pull Request Checklist

• I have read and followed the CONTRIBUTING.md guidelines.
• My contribution adds a new instruction, prompt, or chat mode file in the correct directory.
• The file follows the required naming convention.
• The content is clearly structured and follows the example format.
• I have tested my instructions, prompt, or chat mode with GitHub Copilot.
• I have run npm start and verified that README.md is up to date.

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Description

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Type of Contribution

• New instruction file.
• New prompt file.
• New chat mode file.
• New collection file.
• Update to existing instruction, prompt, chat mode, or collection.
• Other (please specify):

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Additional Notes

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By submitting this pull request, I confirm that my contribution abides by the Code of Conduct and will be licensed under the MIT License.

[aaronpowell]

Nice catch! I should put something in the better validate file names.

You'll need to run npm start to update the README, and it's probably worth adding to the C# development collection

[oleksiyyurchyna]

@aaronpowell I have updated the README and the development collection!

[aaronpowell]

Sorry, my bad, it was https://github.com/github/awesome-copilot/blob/main/collections/csharp-dotnet-development.collection.yml that should be updated for the collection, as the update script will generate the markdown file from it.

[oleksiyyurchyna]

@aaronpowell updated another time :)