fix: Correct spelling errors found by Codespell

[jeremykohn]

Pull Request Checklist

• I have read and followed the CONTRIBUTING.md guidelines.
• My contribution adds a new instruction, prompt, agent, or skill 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, agent, or skill with GitHub Copilot.
• I have run npm start and verified that README.md is up to date.

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Description

Corrects some common spelling errors that were detected by Codespell.

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Type of Contribution

• New instruction file.
• New prompt file.
• New agent file.
• New collection file.
• New skill file.
• Update to existing instruction, prompt, agent, collection or skill.
• Other (please specify): Spelling corrections

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Additional Notes

Further spelling corrections may also be needed. Codespell looks for a set of common misspellings, but it is not meant to be a comprehensive spell-checker.

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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.

[Copilot]

Pull request overview

This PR standardizes and corrects several spelling mistakes across skills, prompts, and instruction/agent files to improve clarity and professionalism in the documentation used by Copilot agents.

Changes:

• Fixes spelling and word-choice issues in SKILL documentation and multiple .prompt.md prompt definitions.
• Corrects spelling in several .instructions.md files to improve guidance text for .NET upgrades, Oqtane, and TaskSync.
• Fixes a wording issue in a Rust-focused agent definition to ensure instructions read clearly.

Reviewed changes

Copilot reviewed 7 out of 7 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
skills/refactor/SKILL.md	Corrects a heading typo (“EVEN BETER” → “EVEN BETTER”) in the refactor skill documentation.
prompts/update-avm-modules-in-bicep.prompt.md	Fixes “outout table” to “output table” in the Bicep AVM update prompt instructions.
prompts/cosmosdb-datamodeling.prompt.md	Fixes spelling in the scale description (“colections/accelss/siginificant” → “collections/access/significant”).
instructions/tasksync.instructions.md	Normalizes wording from “Informations” to “information” in TaskSync guidance.
instructions/oqtane.instructions.md	Fixes “seperate” and “depenencies” to “separate” and “dependencies” in Oqtane instructions.
instructions/dotnet-upgrade.instructions.md	Fixes “successfull” to “successful” in upgrade sequencing instructions; remaining sentence phrasing noted as still unclear.
agents/rust-gpt-4.1-beast-mode.agent.md	Fixes “checkin off a step” → “checking off a step” in the Rust agent workflow guidance.

[mdabdullahalaminkhan]

👍